{"id":346706,"date":"2025-09-23T18:28:08","date_gmt":"2025-09-23T12:58:08","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=346706"},"modified":"2025-09-23T18:28:08","modified_gmt":"2025-09-23T12:58:08","slug":"cpcb-report-on-river-pollution","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/cpcb-report-on-river-pollution\/","title":{"rendered":"CPCB Report on River Pollution"},"content":{"rendered":"<p><strong>News: <\/strong>The CPCB\u2019s latest assessment indicates a slight decline in the number of polluted river stretches across India.<\/p>\n<h2><strong>About polluted river stretch<\/strong><\/h2>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/i0.wp.com\/images.indianexpress.com\/2025\/09\/polluted-river.jpg?resize=514%2C289&#038;ssl=1\" alt=\"polluted river\" width=\"514\" height=\"289\" \/><\/p>\n<ul>\n<li>According to CPCB, a \u201cpolluted river stretch\u201d is where <strong>two or more polluted locations occur in a continuous sequence on a river where BOD levels exceed 3 mg\/L, rendering water unfit for bathing.<\/strong><\/li>\n<li><strong>Classification of Pollution Levels<\/strong>\n<ul>\n<li>CPCB categorizes polluted river stretches into <strong>five priority categories<\/strong> based on BOD.<\/li>\n<li><strong>Priority Class V<\/strong>: BOD 3.1\u20136 mg\/L (least polluted, needs low intervention).<\/li>\n<li><strong>Priority Class I<\/strong>: BOD exceeding 30 mg\/L (most polluted, needs urgent attention).<\/li>\n<li><strong>BOD &lt; 3 mg\/L<\/strong>: Generally fit for bathing.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>Findings of CPCB Report on River Pollution<\/strong><\/h2>\n<ul>\n<li data-start=\"132\" data-end=\"161\"><strong data-start=\"137\" data-end=\"161\">Marginal Improvement: <\/strong>The Central Pollution Control Board\u2019s (CPCB) 2023 assessment shows a slight improvement in river water quality, with the number of polluted stretches reducing from <strong data-start=\"326\" data-end=\"356\">311 in 2022 to 296 in 2023<\/strong>, covering <strong data-start=\"367\" data-end=\"420\">271 rivers across 32 states and Union Territories<\/strong>.<\/li>\n<li data-start=\"132\" data-end=\"161\"><strong data-start=\"435\" data-end=\"459\">Most Affected States: <\/strong><strong data-start=\"460\" data-end=\"475\">Maharashtra<\/strong> remains the worst affected with <strong data-start=\"508\" data-end=\"539\">54 polluted river stretches<\/strong>. Other states with significant pollution include <strong data-start=\"589\" data-end=\"604\">Kerala (31)<\/strong>, <strong data-start=\"606\" data-end=\"646\">Madhya Pradesh and Manipur (18 each)<\/strong>, and <strong data-start=\"652\" data-end=\"670\">Karnataka (14)<\/strong>.<\/li>\n<li data-start=\"132\" data-end=\"161\"><strong data-start=\"685\" data-end=\"713\">Priority Classifications<\/strong>\n<ul>\n<li data-start=\"716\" data-end=\"1006\"><strong data-start=\"716\" data-end=\"746\">Priority I (BOD &gt; 30 mg\/L)<\/strong> \u2013 Most polluted stretches needing urgent intervention dropped from <strong data-start=\"814\" data-end=\"842\">46 in 2022 to 37 in 2023<\/strong>. Notable examples include the <strong data-start=\"873\" data-end=\"891\">Yamuna (Delhi)<\/strong>, <strong data-start=\"893\" data-end=\"918\">Sabarmati (Ahmedabad)<\/strong>, <strong data-start=\"920\" data-end=\"948\">Chambal (Madhya Pradesh)<\/strong>, and parts of the <strong data-start=\"967\" data-end=\"1003\">Tungabhadra and Sarabanga rivers<\/strong>.<\/li>\n<li data-start=\"1009\" data-end=\"1100\"><strong data-start=\"1009\" data-end=\"1040\">Priority V (BOD 3.1\u20136 mg\/L)<\/strong> \u2013 Less polluted stretches requiring minimal intervention.<\/li>\n<\/ul>\n<\/li>\n<li><strong data-start=\"1112\" data-end=\"1144\">Rivers Showing Deterioration: <\/strong>Despite overall gains, certain rivers show worsening quality, including the <strong data-start=\"1221\" data-end=\"1237\">Jhelum (J&amp;K)<\/strong>, <strong data-start=\"1239\" data-end=\"1269\">Ganga and Sikrahna (Bihar)<\/strong>, <strong data-start=\"1271\" data-end=\"1309\">Hasdeo and Mahanadi (Chhattisgarh)<\/strong>, <strong data-start=\"1311\" data-end=\"1350\">Cauvery and Tungabhadra (Karnataka)<\/strong>, <strong data-start=\"1352\" data-end=\"1372\">Periyar (Kerala)<\/strong>, and <strong data-start=\"1378\" data-end=\"1401\">Krishna (Telangana)<\/strong>.<\/li>\n<li><strong data-start=\"1416\" data-end=\"1440\">Long-Term Monitoring: <\/strong>CPCB, along with State Pollution Control Boards, monitors water quality at <strong data-start=\"1516\" data-end=\"1540\">over 4,700 locations<\/strong> under the <strong data-start=\"1551\" data-end=\"1598\">National Water Quality Monitoring Programme<\/strong>, tracking rivers, lakes, drains, and canals.<\/li>\n<li><strong data-start=\"1657\" data-end=\"1688\">Institutional Interventions: <\/strong>Following the <strong data-start=\"1703\" data-end=\"1751\">2018 National Green Tribunal (NGT) directive<\/strong>, all states are required to develop <strong data-start=\"1788\" data-end=\"1823\">river rejuvenation action plans<\/strong>. The current CPCB report highlights <strong data-start=\"1860\" data-end=\"1934\">catchment area management, sewage treatment, and floodplain protection<\/strong> as key measures to control river pollution.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>News: The CPCB\u2019s latest assessment indicates a slight decline in the number of polluted river stretches across India. About polluted river stretch According to CPCB, a \u201cpolluted river stretch\u201d is where two or more polluted locations occur in a continuous sequence on a river where BOD levels exceed 3 mg\/L, rendering water unfit for bathing.&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/cpcb-report-on-river-pollution\/\">Continue reading <span class=\"screen-reader-text\">CPCB Report on River Pollution<\/span><\/a><\/p>\n","protected":false},"author":10366,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,4182,12039],"tags":[11872,10500,10498],"class_list":["post-346706","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-environment","category-knolls","tag-9pm-daily-factly","tag-indian-express","tag-the-hindu","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/346706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10366"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=346706"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/346706\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=346706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=346706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=346706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}