Kamu tahu nggak Squad, kalau pencemaran laut yang paling parah itu disebabkan oleh manusia? Contohnya seperti tumpahan minyak, pencampuran air laut dengan limbah industri, memancing dengan bahan peledak, dan sampah yang terbawa oleh aliran sungai. Nah, supaya kalian mengerti tentang penyebab pencemaran dan konservasi laut secara lebih mendetail, ada baiknya baca baik-baik pembahasan di bawah ini ya!
Sampah pesisir laut Cirebon (sumber: aktual.com)
1. Kualitas Air Laut
Air laut yang bersih itu mempunyai beberapa ciri yang dapat dirasakan dan dilihat, baik secara kasat mata ataupun tidak. Berikut adalah hal yang dapat di ukur untuk menentukan kualitas air laut.
Suhu normal pada permukaan air laut berkisar 26-30°C. Semakin ke dalam, suhu air laut akan semakin rendah. Hal itu terjadi karena sinar matahari tidak mampu lagi menembusnya. Oh iya, air laut juga memiliki sifat yang cukup lama untuk menyerap dan melepaskan panas dari sinar matahari. Kalian tahu nggak apa saja penyebab air laut sulit untuk menyerap panas? Ini dia nih penyebabnya:
-
Permukaan air laut mengkilat seperti cermin sehingga cahaya matahari terpantul
-
Air laut bergerak, sehingga panas yang diterima tersebar ke segala arah
-
Panas cahaya matahari tidak hanya diterima untuk menaikkan suhu, tetapi juga digunakan untuk proses penguapan
-
Kalor jenis air laut cukup besar sehingga untuk menaikkan suhu 10ºC/cm³ dibutuhkan kalor yang lebih banyak dibandingkan daratan.
Sebaliknya, pada malam hari, air laut lambat mengalami pendinginan karena:
-
Proses pelepasan panas terhalang oleh uap di atas permukaan laut.
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Permukaan laut yang mengkilat menghalangi proses pelepasan panas.
-
Kalor jenis air laut cukup besar sehingga untuk menurunkan suhu 10ºC harus melepas kalori yang cukup banyak.
2. Warna Air Laut
Air laut yang baik memiliki tingkat kecerahan dan kejernihan yang bergantung pada dalam atau dangkalnya laut tersebut,selain itu warna dan kecerahan air laut juga dipengaruhi oleh:
-
Kedalaman air laut, semakin dalam air laut makan semakin berwarna biru dan jika semakin dangkal maka akan cenderung berwarna putih
-
Pantulan sinar matahari yang masuk (sehingga air terlihat biru)
- Zat-zat yang larut di dalam air
- Organisme yang terdapat di permukaan air laut.
3. Salinitas atau Garam yang Terkandung di Air Laut
Salinitas adalah banyaknya kandungan garam yang terdapat pada satu liter air laut. Tingkat salinitas ini dipengaruhi oleh banyak faktor, antara lain penguapan, curah hujan, dan banyak sedikitnya sungai yang bermuara di laut. Kalian tahu nggak apa saja kandungan air laut?
Tenang, kalau kamu belum tahu ini dia ada tabel kandungan air laut.
Air laut yang tercemar, juga bisa diukur dengan beberapa hal di antaranya:
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Parameter Fisika: Meliputi pengukuran tentang warna air laut, rasa, bau, suhu, kekeruhan, dan radioaktivitas (tingkat pencemaran oleh bahan radioaktif.
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Parameter Kimia: Digunakan untuk mengukur kadar CO2, pH, keasaman, dan kadar logam yang terkandung.
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Parameter Biologi: Ditandai dengan punahnya beberapa hewan tertentu yang tidak tahan akan perubahan, baik secara fisika atau kimia.
Nah Squad, setelah mengetahui kondisi air laut yang baik dan cara mengukur tingkat pencemarannya, yuk sekarang kita lihat apa saja contoh penyebab tercemarnya air laut.
1. Oil Spill (Tumpahan Minyak)
Tumpahan minyak di laut (Sumber: nasional.republika.co.id)
Pencemaran ini biasanya terjadi karena kelalaian manusia, sehingga menyebabkan minyak tertumpah ke laut dalam jumlah yang besar. Contohnya adalah kecelakaan kapal tanker atau kecelakaan dalam proses pengeboran sumur minyak.
2. Pencemaran oleh Logam Berat
Logam berat adalah materi anorganik baik padat atau cair yang memiliki masa lebih dari 5 gram/cm³. Bbiasanya terjadi karena pembuangan limbah industri secara sembarangan ke sungai sehingga logam berat yang terkandung terbawa sampai ke laut. Contoh dari logam berat misalnya, merkuri(Hg), seng (Zn), nikel (Ni) dan timbal (Pb).
3. Pencemaran Mikrobiologi Laut
Akibat adanya kontaminasi yang disebabkan oleh virus, bakteri patogen, atau parasit yang terbawa oleh aliran air sungai.
4. Pencemaran Pestisida
Pencemaran ini terjadi jika ada perkebunan/sawah yang berada di aliran sungai menggunakan sistem irigasi dan menyemprot tanamannya dengan pestisida. Sementara itu, pestisida tidak bisa larut di dalam air dan justru dimakan oleh plankton, sehingga semua jenis ikan yang memakan plankton tersebut memiliki kandungan pestisida. Hal ini berbahaya apalagi jika ikan tersebut dikonsumsi oleh manusia untuk jangka waktu yang lama.
5. Pencemaran Limbah Rumah Tangga
Limbah rumah tangga adalah segala sesuatu yang dibuang manusia ke dalam aliran air/got/parit. Misalnya sisa makanan organik (nasi, sayur, ikan, minyak), plastik, dan bahan anorganik lainnya kemudian terbawa oleh aliran air hingga ke laut.
6. Pencemaran Radioaktif
Ledakan reaktor nuklir di Fukushima, Jepang (Sumber: yournewswire.com)
Pencemaran radioaktif dapat terjadi karena secara alami atau akibat manusia. Contoh yang paling mudah adalah bocornya reaktor nuklir Fukushima di Jepang, sehingga melepaskan air yang mengandung radiasi ke laut. Hal ini sangat berbahaya, karena jika radiasi terakumulasi dalam tubuh secara terus menerus, dapat berakibat pada kanker.
Oh iya Squad, nggak semua manusia itu berbuat jahat kepada laut lho. Ada juga manusia yang peduli terhadap laut dan melakukan upaya untuk menyelamatkan laut dari pencemaran. Salah satunya dengan melakukan konservasi laut.
Konservasi laut adalah upaya melindungi, melestarikan, menjaga, dan memanfaatkan sumber daya yang ada di laut untuk menjamin ketersediaannya di masa mendatang. Konservasi ini tidak terbatas pada lautnya saja, tetapi juga mencakup pulau kecil, serta pesisir.
Indonesia sebagai negara maritim mempunyai beberapa daerah konservasi laut, di antaranya.
1. Wakatobi
Tampak dalam laut Wakatobi (sumber: wakatobi.com)
Laut wakatobi tampak begitu indah, bersih, dan juga cantik karena banyak ikan dan terumbu karang yang terjaga dan terawat. Hal itu terjadi karena adanya konservasi laut. Kalian bisa bayangin ‘kan apa jadinya kalau laut seindah itu tercemar? Apalagi pencemarannya itu akibat ulah manusia sendiri.
2. Derawan
Tampak dalam laut Derawan (sumber: liputan6.com)
Sama halnya dengan Wakatobi, Derawan adalah daerah konservasi laut. Kalau laut kita terawat, semua makhluk hidup di dalamnya pun akan tumbuh dan berkembang biak dengan baik. Selain itu, kita juga bisa menikmatinya.
Jadi gimana Squad, sudah tahu ‘kan betapa bahayanya akibat yang di timbulkan dari pencemaran laut? Makanya, kita harus menjaga dan melindungi laut kita ya. Setelah membaca artikel ini, harapannya sih kamu bisa lebih peka lagi sama laut dan alam sekitar. Mungkin saja setelah ini kamu mau ikut terlibat kegiatan-kegiatan konservasi laut. Nah, sebelum terlibat, ada baiknya belajar lebih baik lagi supaya belajarnya bisa sambil praktik. Pakai ruangbelajar di aplikasi Ruangguru ya!
Referensi:
Wardiyatmoko. 2006. Geografi untuk SMA/MA Kelas X. Jakarta: Erlangga
Sindhu P. Yasinto. 2016. Geografi untuk SMA/MA Kelas X. Jakarta: Erlangga
Sumber foto:
Foto Sampah pesisir laut Cirebon [daring]. Tautan: https://aktual.com/sampah-pesisir-laut-cirebon/
Foto Tumpahan minyak di laut [daring]. Tautan: https://nasional.republika.co.id/berita/ox1q4e368/sanksi-atas-tumpahan-minyak-di-teluk-bayur-tunggu-kajian
Foto Tampak dalam laut Wakatobi [daring]. Tautan: https://www.wakatobi.com/
Foto Tampak dalam laut Derawan [daring]. Tautan: https://www.liputan6.com/lifestyle/read/3080716/kepulauan-derawan-destinasi-cantik-penggoda-wisman-yachter
Artikel diperbarui pada 3 Desember 2020.
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<h1 class="content-title">
Penyebab Pencemaran dan Dampak Konservasi Laut | Geografi Kelas 10 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/seno-aji" class="">Seno Aji</a> </p>
<p class="content-info"><span>April 4, 2018 • </span> <span>6 minutes read</span></p>
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<p style="text-align: justify;"><span style="color: #000000;"><img fetchpriority="high" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Header%20blog%20RG/Geografi_10.jpg" alt="Geografi_10" width="820" height="410" style="width: 820px; display: block; margin-left: auto; margin-right: auto;"></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Kamu tahu <em>nggak </em>Squad, kalau pencemaran laut yang paling parah itu disebabkan oleh manusia? Contohnya seperti tumpahan minyak, pencampuran air laut dengan limbah industri, memancing dengan bahan peledak, dan sampah yang terbawa oleh aliran sungai. <em>Nah</em>, supaya kalian mengerti tentang <strong><a href="/5-polutan-penyebab-pencemaran-tanah">penyebab pencemaran</a></strong> dan konservasi laut secara lebih mendetail, ada baiknya baca baik-baik pembahasan di bawah ini ya!</span></p>
<p><span style="color: #000000;"><span id="more-10234"></span></span></p>
<p style="text-align: center;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/antarafoto-sampah-pesisir-160516-ipp-1.jpg" width="600" height="402" style="width: 600px; margin: 0px auto;" alt="pencemaran laut"></p>
<p style="text-align: center;">Sampah pesisir laut Cirebon (sumber: aktual.com)</p>
<p><span style="color: #0000ff;"><strong>1. Kualitas Air Laut</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Air laut yang bersih itu mempunyai beberapa ciri yang dapat dirasakan dan dilihat, baik secara kasat mata ataupun tidak. <strong>Berikut adalah hal yang dapat di ukur untuk menentukan kualitas air laut</strong>.</span></p>
<ul>
<li><span style="background-color: #ffffff;"><strong><span style="color: #000000;">Suhu Air</span></strong></span></li>
</ul>
<p style="text-align: justify;"><span style="color: #000000;">Suhu normal pada permukaan air laut berkisar<strong> 26-30°C</strong>. Semakin ke dalam, suhu air laut akan semakin rendah. Hal itu terjadi karena sinar matahari tidak mampu lagi menembusnya. Oh iya, air laut juga memiliki sifat yang cukup lama untuk menyerap dan melepaskan panas dari sinar matahari. Kalian tahu <em>nggak</em> apa saja penyebab air laut sulit untuk menyerap panas? Ini dia nih penyebabnya:</span></p>
<ul style="list-style-type: circle;">
<li style="text-align: justify;"><span style="color: #000000;"><strong>Permukaan air laut mengkilat</strong> seperti cermin sehingga cahaya matahari terpantul</span></li>
<li style="text-align: justify;"><span style="color: #000000;"><strong>Air laut bergerak,</strong> sehingga panas yang diterima tersebar ke segala arah</span></li>
<li style="text-align: justify;"><span style="color: #000000;"><strong>Panas cahaya matahari</strong> tidak hanya diterima untuk menaikkan suhu, tetapi juga digunakan untuk proses penguapan</span></li>
<li style="text-align: justify;"><span style="color: #000000;"><strong>Kalor jenis air laut cukup besar</strong> sehingga untuk menaikkan suhu 10ºC/cm³ dibutuhkan kalor yang lebih banyak dibandingkan daratan.</span></li>
</ul>
<p style="text-align: justify;"><span style="color: #000000;">Sebaliknya, pada malam hari, air laut lambat mengalami pendinginan karena:</span></p>
<ul style="text-align: justify; list-style-type: circle;">
<li><span style="color: #000000;"><strong>Proses pelepasan panas terhalang oleh uap</strong> di atas permukaan laut.</span></li>
<li><span style="color: #000000;"><strong>Permukaan laut yang mengkilat</strong> menghalangi proses pelepasan panas.</span></li>
<li><span style="color: #000000;"><strong>Kalor jenis air laut cukup besar</strong> sehingga untuk menurunkan suhu 10ºC harus melepas kalori yang cukup banyak.</span></li>
</ul>
<p><span style="background-color: #ffffff; color: #0000ff;"><strong>2. Warna Air Laut</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Air laut yang baik memiliki tingkat kecerahan dan kejernihan yang bergantung pada dalam atau dangkalnya laut tersebut,selain itu warna dan kecerahan air laut juga dipengaruhi oleh:</span></p>
<ul style="text-align: justify; list-style-type: circle;">
<li><span style="color: #000000;"><strong>Kedalaman air laut</strong>, semakin dalam air laut makan semakin berwarna biru dan jika semakin dangkal maka akan cenderung berwarna putih</span></li>
<li><span style="color: #000000;"><strong>Pantulan sinar matahari</strong> yang masuk (sehingga air terlihat biru)</span></li>
<li><strong><span style="color: #000000;">Zat-zat yang larut di dalam air</span></strong></li>
<li><strong><span style="color: #000000;">Organisme yang terdapat di permukaan air laut.</span></strong></li>
</ul>
<p style="text-align: justify;"><span style="background-color: #ffffff; color: #0000ff;"><strong>3. Salinitas atau Garam yang Terkandung di Air Laut</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Salinitas adalah banyaknya kandungan garam yang terdapat pada satu liter air laut. <strong>Tingkat salinitas ini dipengaruhi oleh banyak faktor, antara lain penguapan, curah hujan, dan banyak sedikitnya sungai yang bermuara di laut</strong>. Kalian tahu <em>nggak</em> apa saja kandungan air laut? </span></p>
<p style="text-align: justify;"><span style="color: #000000;">Tenang, kalau kamu belum tahu ini dia ada tabel kandungan air laut.</span></p>
<p><span style="color: #000000;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Aset%202%20(1).jpg" width="600" height="514" style="width: 600px; display: block; margin: 0px auto;" alt="pencemaran laut"></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Air laut yang tercemar, juga bisa diukur dengan beberapa hal di antaranya:</span></p>
<ul style="text-align: justify;">
<li><strong><span style="color: #000000;">Parameter Fisika</span></strong><span style="color: #000000;">:</span><strong><span style="color: #000000;"> </span></strong>Meliputi pengukuran tentang warna air laut, rasa, bau, suhu, kekeruhan, dan radioaktivitas (tingkat pencemaran oleh bahan radioaktif.</li>
</ul>
<ul style="text-align: justify;">
<li><strong>Parameter Kimia</strong>:<strong> </strong>Digunakan untuk mengukur kadar CO2, pH, keasaman, dan kadar logam yang terkandung.</li>
</ul>
<ul>
<li style="text-align: justify;"><strong><span style="color: #000000;">Parameter Biologi</span></strong><span style="color: #000000;">:</span><strong><span style="color: #000000;"> </span></strong>Ditandai dengan punahnya beberapa hewan tertentu yang tidak tahan akan perubahan, baik secara fisika atau kimia.</li>
</ul>
<p style="text-align: justify;"><span style="color: #000000;"><em><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Soal%20TKPA%20SBMPTN%202017%20(1)-9.png" width="911" height="29" style="width: 911px;"></em></span></p>
<p style="text-align: justify;"><span style="color: #000000;"><em>Nah</em> Squad, setelah mengetahui kondisi air laut yang baik dan cara mengukur tingkat pencemarannya, <em>yuk</em> sekarang kita lihat apa saja <strong>contoh<em> </em>penyebab tercemarnya air laut</strong>.</span></p>
<p><span style="color: #0000ff;"><strong>1.<em> Oil Spill </em>(Tumpahan Minyak)</strong></span></p>
<p><span style="color: #000000;"><strong><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Aset%203%20(1).jpg" alt="pencemaran laut" width="600" height="402" style="width: 600px; display: block; margin: 0px auto;"></strong></span></p>
<p style="text-align: center;"><span style="color: #000000;">Tumpahan minyak di laut (Sumber: nasional.republika.co.id)</span></p>
<p style="text-align: justify;"><span style="color: #000000;">Pencemaran ini biasanya terjadi karena kelalaian manusia, sehingga menyebabkan minyak tertumpah ke laut dalam jumlah yang besar. <strong>Contohnya adalah kecelakaan kapal tanker atau kecelakaan dalam proses pengeboran sumur minyak.</strong></span></p>
<p><span style="color: #0000ff;"><strong>2. Pencemaran oleh Logam Berat</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Logam berat adalah materi anorganik baik padat atau cair yang memiliki masa lebih dari 5 gram/cm³. Bbiasanya terjadi karena pembuangan limbah industri secara sembarangan ke sungai sehingga logam berat yang terkandung terbawa sampai ke laut. <strong>Contoh dari logam berat misalnya, merkuri(Hg), seng (Zn), nikel (Ni) dan timbal (Pb)</strong>.</span></p>
<p><span style="color: #0000ff;"><strong>3. Pencemaran Mikrobiologi Laut</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Akibat adanya kontaminasi yang disebabkan oleh virus, bakteri patogen, atau parasit yang terbawa oleh aliran air sungai.</span></p>
<p><span style="color: #0000ff;"><strong>4. Pencemaran Pestisida</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Pencemaran ini terjadi jika ada perkebunan/sawah yang berada di aliran sungai menggunakan sistem irigasi dan menyemprot tanamannya dengan pestisida. Sementara itu, pestisida tidak bisa larut di dalam air dan justru dimakan oleh plankton, sehingga semua jenis ikan yang memakan plankton tersebut memiliki kandungan pestisida. Hal ini berbahaya apalagi jika ikan tersebut dikonsumsi oleh manusia untuk jangka waktu yang lama.</span></p>
<p><span style="color: #0000ff;"><strong>5. Pencemaran Limbah Rumah Tangga</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Limbah rumah tangga adalah segala sesuatu yang dibuang manusia ke dalam aliran air/got/parit. Misalnya sisa makanan organik (nasi, sayur, ikan, minyak), plastik, dan bahan anorganik lainnya kemudian terbawa oleh aliran air hingga ke laut.</span></p>
<p><span style="color: #0000ff;"><strong>6. Pencemaran Radioaktif</strong></span></p>
<p><span style="color: #000000;"><strong><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Aset%204%20(1).jpg" width="600" height="363" style="width: 600px; display: block; margin: 0px auto;" alt="pencemaran laut"></strong></span></p>
<p style="text-align: center;"><span style="color: #000000;">Ledakan reaktor nuklir di Fukushima, Jepang (Sumber: yournewswire.com)</span></p>
<p style="text-align: justify;"><span style="color: #000000;">Pencemaran radioaktif dapat terjadi karena secara alami atau akibat manusia. <strong>Contoh yang paling mudah adalah bocornya reaktor nuklir</strong> Fukushima di Jepang, sehingga melepaskan air yang mengandung radiasi ke laut. Hal ini sangat berbahaya, karena jika radiasi terakumulasi dalam tubuh secara terus menerus, dapat berakibat pada kanker.</span></p>
<p style="text-align: justify;"><span style="color: #000000;"><em><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Soal%20TKPA%20SBMPTN%202017%20(1)-9.png" width="911" height="29" style="width: 911px;"></em></span></p>
<p style="text-align: justify;"><span style="color: #000000;">Oh iya Squad, <em>nggak</em> semua manusia itu berbuat jahat kepada laut <em>lho</em>. Ada juga manusia yang peduli terhadap laut dan melakukan upaya untuk menyelamatkan laut dari pencemaran. Salah satunya dengan melakukan konservasi laut.</span></p>
<p style="text-align: justify;"><span style="color: #000000;"><strong>Konservasi laut adalah upaya melindungi, melestarikan, menjaga, dan memanfaatkan sumber daya</strong> <strong>yang ada di laut</strong> untuk menjamin ketersediaannya di masa mendatang. Konservasi ini tidak terbatas pada lautnya saja, tetapi juga mencakup pulau kecil, serta pesisir.</span></p>
<p style="text-align: justify;"><span style="color: #000000;">Indonesia sebagai negara maritim mempunyai beberapa daerah konservasi laut, di antaranya.</span></p>
<p><span style="color: #0000ff;"><strong>1. Wakatobi</strong></span></p>
<p style="text-align: justify;"><span style="color: #000000;"><strong><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Aset%206%20(1).jpg" width="600" height="298" style="width: 600px; display: block; margin: 0px auto;" alt="penyebab pencemaran"></strong></span></p>
<p style="text-align: center;"><span style="color: #000000;">Tampak dalam laut Wakatobi (sumber: wakatobi.com)</span></p>
<p style="text-align: justify;">Laut wakatobi tampak begitu indah, bersih, dan juga cantik karena banyak ikan dan terumbu karang yang terjaga dan terawat. Hal itu terjadi karena adanya konservasi laut. Kalian bisa bayangin ‘<em>kan</em> apa jadinya kalau laut seindah itu tercemar? Apalagi pencemarannya itu akibat ulah manusia sendiri.</p>
<p><span style="color: #0000ff;"><strong>2. Derawan</strong></span></p>
<p><span style="color: #000000;"><strong><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Aset%205.jpg" alt="penyebab pencemaran" width="600" height="338" style="width: 600px; display: block; margin: 0px auto;"></strong></span></p>
<p style="text-align: center;"><span style="color: #000000;">Tampak dalam laut Derawan (sumber: liputan6.com)</span></p>
<p style="text-align: justify;"><span style="color: #000000;">Sama halnya dengan Wakatobi, Derawan adalah daerah konservasi laut. Kalau laut kita terawat, semua makhluk hidup di dalamnya pun akan tumbuh dan berkembang biak dengan baik. Selain itu, kita juga bisa menikmatinya.</span></p>
<p style="text-align: justify;"><span style="color: #000000;">Jadi gimana Squad, sudah tahu ‘<em>kan</em> betapa bahayanya akibat yang di timbulkan dari pencemaran laut? Makanya, kita harus menjaga dan melindungi laut kita ya. Setelah membaca artikel ini, harapannya <em>sih</em> kamu bisa lebih peka lagi sama laut dan alam sekitar. Mungkin saja setelah ini kamu mau ikut terlibat kegiatan-kegiatan konservasi laut. <em>Nah</em>, sebelum terlibat, ada baiknya belajar lebih baik lagi supaya belajarnya bisa sambil praktik. Pakai<a href="http://bit.ly/rg_app" rel="noopener" target="_blank"><strong> ruangbelajar</strong></a> di aplikasi Ruangguru ya! </span></p>
<p><a href="https://link.ruangguru.com/blPk/eaff0eb9" target="_blank" style="text-align: center;" class="rg-cta" rel="noopener"><img loading="lazy" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/cta/0ec4a2df-db2e-4ae1-8473-692756dcb684.jpeg" width="822" height="200" alt="IDN CTA Blog ruangbelajar Ruangguru" /></a></p>
<p><strong>Referensi:</strong></p>
<p><span style="background-color: transparent;">Wardiyatmoko. 2006. Geografi untuk SMA/MA Kelas X. Jakarta: Erlangga</span></p>
<p>Sindhu P. Yasinto. 2016. Geografi untuk SMA/MA Kelas X. Jakarta: Erlangga</p>
<p><strong>Sumber foto:</strong></p>
<p>Foto <span>Sampah pesisir laut Cirebon [daring]. Tautan: https://aktual.com/sampah-pesisir-laut-cirebon/</span></p>
<p><span>Foto Tumpahan minyak di laut [daring]. Tautan: https://nasional.republika.co.id/berita/ox1q4e368/sanksi-atas-tumpahan-minyak-di-teluk-bayur-tunggu-kajian</span></p>
<p><span>Foto Tampak dalam laut Wakatobi [daring]. Tautan: https://www.wakatobi.com/</span></p>
<p><span>Foto Tampak dalam laut Derawan [daring]. Tautan: https://www.liputan6.com/lifestyle/read/3080716/kepulauan-derawan-destinasi-cantik-penggoda-wisman-yachter</span></p>
<p style="margin-top: 0in; margin-right: 0in; margin-bottom: 12pt; padding-left: 0in; font-size: 16px;"><strong><em><span style="color: #39464e;">Artikel diperbarui pada 3 Desember 2020.</span></em></strong></p>
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<div class="d-lg-none text-center">
<nav class="footer-menu social">
<p class="title">Ikuti Kami</p>
<a target="_blank" href="https://www.instagram.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/instagram.png" loading="lazy" alt="Logo Instagram Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.facebook.com/ruanggurucom/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/facebook.png" loading="lazy" alt="Logo Facebook Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://twitter.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/twitter.png" loading=" lazy" alt="Logo Twitter Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.youtube.com/ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/youtube.png" loading=" lazy" alt="Logo Youtube Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.linkedin.com/company/ruangguru-com">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/linkedin.png" loading=" lazy" alt="Logo LinkedIn Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.tiktok.com/@ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/tiktok.png" loading=" lazy" alt="Logo TikTok Footer" width="32px" height="32px" />
</picture>
</a>
</nav>
</div>
<p class="footer-copyright">
© 2026 All Rights Reserved PT. Ruang Raya Indonesia
</p>
</div>
<style>
.bantuan-container {
position: relative;
}
.bantuan-element {
position: fixed;
z-index: 999;
display: flex;
align-items: flex-end;
justify-content: flex-end;
cursor: pointer;
transition: all 0.6s ease;
}
.bantuan-top {
bottom: 11rem;
right: 2rem;
}
.bantuan-bottom {
bottom: 2rem;
right: 2rem;
}
.bantuan-top-2 {
bottom: 15rem;
right: 2rem;
}
.bantuan-top-3 {
bottom: 19rem;
right: 2rem;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 2rem;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 2rem;
}
@media (min-width: 768px) {
.bantuan-element img {
width: auto;
transition: all 0.4s ease;
}
.bantuan-top img {
width: 140px;
}
.bantuan-bottom img {
width: 140px;
}
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 140px;
}
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 140px;
}
.bantuan-element.clicked {
bottom: 9rem;
right: 2.5rem;
}
.bantuan-element.clicked img {
width: auto;
height: 64px;
}
}
@media (max-width: 767px) {
.bantuan-top {
bottom: 8rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom {
bottom: 2rem;
right: 1.25rem;
align-items: center;
}
.bantuan-top-2 {
bottom: 12rem;
right: 1rem;
align-items: center;
}
.bantuan-top-3 {
bottom: 16rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 1.25rem;
align-items: center;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 1.25rem;
align-items: center;
}
.bantuan-element img {
width: auto;
}
.bantuan-top img,
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 96px;
}
.bantuan-bottom img,
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 96px;
}
}
.bantuan-element:hover {
transform: scale(1.05);
}
.bantuan-element img {
max-width: 100%;
height: auto;
}
</style>
<div id="bantuan-divs-container" style="position: relative" data-product="ruangguru" data-table="rg_floating_icon"></div>
<script>
class FloatingDivsComponent {
constructor(product = 'ruangguru', table = 'rg_floating_icon') {
this.container = document.getElementById('bantuan-divs-container');
this.floatingElements = [];
this.product = product;
this.table = table;
// Configuration
this.config = {
baseApiUrl: 'https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/rg_banner/views/',
apiKey: 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
maxElements: 2,
zIndexBase: 100,
};
// Build dynamic API URL based on table parameter
this.config.apiUrl = this.buildApiUrl();
this.init();
}
buildApiUrl() {
const baseUrl = this.config.baseApiUrl;
const tableName = this.table || 'rg_floating_icon';
const queryParams =
'offset=0&limit=99999&sort=rankPosition&where=(type,eq,floating)~and(showIn,anyof,blog)~and(hide,is,false)~and(product,eq,' +
this.product +
')&nested%5Bcta%5D%5Bfields%5D=Id,name,ctaId,imageUrl,ctaLink,targetUrl';
return `${baseUrl}${tableName}?${queryParams}`;
}
async init() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to initialize floating divs component:', error);
}
}
async fetchFloatingElements() {
try {
const options = {
method: 'GET',
headers: {
'xc-token': this.config.apiKey || 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
},
};
const urlNoco = this.config.apiUrl;
const response = await fetch(urlNoco, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
this.floatingElements = this.processApiResponse(data);
} catch (error) {
console.error('Error fetching floating elements:', error);
throw error;
}
}
processApiResponse(data) {
if (!data || !data.list || !Array.isArray(data.list)) {
return [];
}
console.log(data.list);
// Ensure we only get maximum 2 elements
const limitedElements = data.list.slice(0, this.config.maxElements);
return limitedElements;
}
renderFloatingElements() {
if (!this.container || this.floatingElements.length === 0) {
return;
}
// Additional safeguard: ensure we never render more than maxElements
const elementsToRender = this.floatingElements.slice(0, this.config.maxElements);
// Clean up existing elements and their event listeners
this.cleanupExistingElements();
// Clear existing content
this.container.innerHTML = '';
elementsToRender.forEach((element, index) => {
const floatingDiv = this.createFloatingDiv(element, index);
this.container.appendChild(floatingDiv);
});
}
cleanupExistingElements() {
// Clear existing elements (no need for event listener cleanup with CSS approach)
const existingElements = this.container.querySelectorAll('[data-floating-element]');
existingElements.forEach(element => {
element.remove();
});
}
createFloatingDiv(element, index) {
const div = document.createElement('div');
const cta = element.cta[0]; // Use the first CTA
// Add data attribute for cleanup tracking
div.setAttribute('data-floating-element', 'true');
// Apply CSS classes based on rankPosition
const positionClass = this.getPositionClass(element.rankPosition, index);
div.className = `bantuan-element ${positionClass}`;
div.style.zIndex = this.config.zIndexBase + index;
// Create the link and image
const link = document.createElement('a');
link.href = 'https://cta.ruangguru.com/' + cta.ctaId || '#';
link.target = '_blank';
// Add tracking attributes
link.setAttribute('data-tracking-event-type', 'landing_page__core__item_click');
link.setAttribute(
'data-tracking-context',
JSON.stringify({
product_name: this.product,
cta_action: 'redirection',
cta_action_detail: link.href,
item_type: 'floating',
item_name: element.name || 'Floating element',
item_category: 'payment',
item_position: index,
item_serial: null,
section_type: 'floating_item',
section_position: 'body',
section_name: 'floating_item',
})
);
const img = document.createElement('img');
img.src = element.imageUrl + '?h=200&convert=webp';
img.alt = element.name || 'Floating element';
img.loading = 'lazy';
// Add click tracking
link.addEventListener('click', () => {
this.trackClick(element, cta);
});
link.appendChild(img);
div.appendChild(link);
return div;
}
getPositionClass(rankPosition, index) {
// Define positioning classes based on rankPosition
if (rankPosition === 1) {
return 'bantuan-top'; // Top position
} else if (rankPosition === 2) {
return 'bantuan-bottom'; // Bottom position
} else {
// For additional elements, distribute them evenly
return `bantuan-${index % 2 === 0 ? 'top' : 'bottom'}-${Math.floor(index / 2) + 1}`;
}
}
trackClick(element, cta) {
// Implement click tracking logic here
console.log('Floating element clicked:', {
elementId: element.Id,
elementName: cta.name,
ctaId: cta.ctaId,
targetUrl: cta.targetUrl,
});
}
// Public method to manually refresh
async refresh() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to refresh floating elements:', error);
throw error;
}
}
// Public method to get current floating elements
getFloatingElements() {
return [...this.floatingElements];
}
}
// Initialize the component when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
// Get product and table parameters from data attributes
const container = document.getElementById('bantuan-divs-container');
const product = container.getAttribute('data-product') || 'ruangguru';
const table = container.getAttribute('data-table') || 'rg_floating_icon';
new FloatingDivsComponent(product, table);
});
// Export for use in other modules if needed
if (typeof module !== 'undefined' && module.exports) {
module.exports = FloatingDivsComponent;
}
</script> <div id="wp-install-nudge" style="
position: fixed;
bottom: 0rem;
right: 0;
z-index: 999;
cursor: pointer;
"></div>
<script>
(function (w, d, s, o, f, js, fjs) {
w['Sales-Nudge-Widget'] = o; w[o] = w[o] || function () { (w[o].q = w[o].q || []).push(arguments) };
js = d.createElement(s), fjs = d.getElementsByTagName(s)[0];
js.id = o; js.src = f; js.async = 1; fjs.parentNode.insertBefore(js, fjs);
}(window, document, 'script', 'wpInstallNudge', 'https://cdn-web-2.ruangguru.com/sales-nudge/6198a95130/dist/widget.js'));
wpInstallNudge('init', { targetElementId: 'wp-install-nudge', clientTarget: 'ruangguru_blog' });
</script>
<script>
// note: disabled due to auto reload page
// var lastScrollTop = 0;
// $(window).scroll(function(event){
// var st = $(this).scrollTop();
// if (st > lastScrollTop){
// $('#wp-install-nudge').slideDown( "slow", function() {});
// } else {
// $('#wp-install-nudge').slideUp( "slow", function() {});
// }
// lastScrollTop = st;
// });
// $(document).ready(function () {
// $("#wp-install-nudge").hide();
// });
$('#wp-install-nudge').click(function(){
Analytics.track("promotion__install_nudge__click",
{
user_email: "ruangguru@blog.com",
cta_link: widgetData.dataConfig.target_link
}).catch((err) => {
console.log("tracker error", err);
});
});
</script>
</footer>
<div id="__next"></div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/blog\/*"},{"not":{"href_matches":["\/blog\/wp-*.php","\/blog\/wp-admin\/*","\/blog\/wp-content\/uploads\/*","\/blog\/wp-content\/*","\/blog\/wp-content\/plugins\/*","\/blog\/wp-content\/themes\/ruangguru\/*","\/blog\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script>
async function getCtaDetails(ctaIds) {
const endpoint =
" https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/CTA/views/CTA?offset=0&limit=10&where=(ctaId,in," + ctaIds.toString() + ")";
try {
const response = await fetch(endpoint, {
headers: {
"xc-token": "-hG2nBDJzSj0agSgNtcJx97M4F02y54nUMoY6plJ",
},
});
const data = await response.json();
const ctaList = data?.list || [];
const ctaMap = new Map();
for (const ctaData of ctaList) {
ctaMap.set(ctaData.ctaId, ctaData);
}
return ctaMap;
} catch (error) {
console.error("Error fetching CTA details:", error);
return new Map();
}
}
async function replaceCTA() {
const regex = /{{cta\((‘(.*?)’|“(.*?)”)\)}}/g;
const bodyHTML = document.body.innerHTML;
const matches = Array.from(bodyHTML.matchAll(regex));
const ctaIds = matches.map((match) => {
let ctaId = match[2] ?? match[3];
return ctaId;
});
const ctaMap = await getCtaDetails(ctaIds);
const replacedHTML = bodyHTML.replace(regex, (match, _inner, ctaId1, ctaId2) => {
const ctaId = ctaId1 ?? ctaId2;
const ctaData = ctaMap.get(ctaId);
if (ctaData) {
return `<a href="https://cta.ruangguru.com/${ctaData.ctaId}" target="_${ctaData.targetType}" style="position:relative;display:inline-block;">
<img src="${ctaData.imageUrl}" loading="lazy" alt="${ctaData.altText}" />
</a>`;
} else {
return match;
}
});
document.body.innerHTML = replacedHTML;
}
</script>
<meta name="author" content="Ruangguru Tech Team">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PVNLZFT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- Tracker -->
<script type="text/javascript" src="https://cdn-web-2.ruangguru.com/landing-page-web/public/staticpages/global-assets/js/cta.js"></script>
<script src="https://unpkg.com/@dotlottie/player-component@latest/dist/dotlottie-player.mjs" type="module"></script>
</body>
</html>