{"id":322275,"date":"2025-01-04T17:55:50","date_gmt":"2025-01-04T12:25:50","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=322275"},"modified":"2025-01-06T12:00:15","modified_gmt":"2025-01-06T06:30:15","slug":"rising-nitrate-levels-in-indias-groundwater","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/rising-nitrate-levels-in-indias-groundwater\/","title":{"rendered":"Rising Nitrate Levels in India’s Groundwater"},"content":{"rendered":"

\"Rising<\/p>\n

Source: <\/strong>This post on Rising Nitrate Levels in India’s Groundwater<\/strong> has been created based on article \u201cIndia, cross-border insolvency and legal reform \u201d <\/strong>published in The Hindu on 4th<\/sup> January 2025. <\/strong><\/p>\n

UPSC Syllabus topic: GS-3- Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment<\/strong><\/p>\n

Context: <\/strong>India’s groundwater quality is facing a significant threat, as highlighted by the latest annual assessment from the Central Ground Water Board (CGWB). The report indicates a worrying increase in districts affected by excessive nitrate contamination in groundwater, rising from 359 districts in 2017 to 440 in 2023. Rising Nitrate Levels in India’s Groundwater<\/strong><\/p>\n

What does the CGWB’s annual assessment reveal about nitrate levels in groundwater?<\/strong><\/h2>\n
    \n
  1. The Central Ground Water Board’s (CGWB) 2023 assessment shows that the number of districts with excessive nitrate in groundwater has risen from 359 in 2017 to 440 in 2023.<\/li>\n
  2. This means over half of India\u2019s 779 districts now have nitrate levels exceeding the safe limit of 45 mg\/L.<\/li>\n<\/ol>\n

    Why is excessive nitrate in groundwater a concern?<\/strong><\/h2>\n
      \n
    1. Health Impact<\/strong>:\n
        \n
      1. High nitrate levels can cause methemoglobinemia or ‘Blue Baby Syndrome’ in infants, which reduces red blood cells’ ability to carry oxygen.<\/li>\n<\/ol>\n<\/li>\n
      2. Environmental Impact<\/strong>:\n
          \n
        1. Excess nitrates in surface water, such as lakes and ponds, contribute to algal blooms, which harm aquatic ecosystems.<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

          What proportion of groundwater samples were found with excessive nitrate levels in 2023?<\/strong><\/h2>\n

          Out of 15,239 samples analyzed, 19.8% contained nitrates above the safe limit. This is a slight improvement from 2017 when 21.6% of 13,028 samples were unsafe.<\/p>\n

          Which states report the highest nitrate contamination?<\/strong><\/h2>\n
            \n
          1. Rajasthan (49%), Karnataka (48%), and Tamil Nadu (37%)<\/strong> showed the highest percentages of samples exceeding safe nitrate limits.<\/li>\n
          2. Rajasthan, Madhya Pradesh, and Gujarat face perennial nitrate issues due to geological factors, with relatively stable contamination levels since 2017.<\/li>\n
          3. Regions in central and southern India are witnessing a rise in nitrate levels, which is an emerging concern.<\/li>\n<\/ol>\n

            \u00a0What causes elevated nitrate levels in groundwater?<\/strong><\/h2>\n
              \n
            1. Intensive agriculture<\/strong> has been consistently linked to high nitrate concentrations.<\/li>\n
            2. Over-exploitation of groundwater exacerbates contamination, as evidenced in states with severely depleted groundwater blocks.<\/li>\n<\/ol>\n

              What other chemical contaminants affect groundwater quality?<\/strong><\/h2>\n
                \n
              1. Apart from nitrate, fluoride<\/strong> and uranium<\/strong> were identified as major concerns.<\/li>\n
              2. High fluoride levels are problematic in Rajasthan, Haryana, Karnataka, Andhra Pradesh, and Telangana.<\/li>\n<\/ol>\n

                \u00a0What is India’s current rate of groundwater extraction?<\/strong><\/h2>\n
                  \n
                1. The degree of groundwater extraction stands at 4%<\/strong>, consistent with levels observed since 2009.<\/li>\n
                2. About 73% of the blocks analyzed<\/strong> are in the safe zone, meaning they are adequately replenished to offset water extraction.<\/li>\n<\/ol>\n

                  What measures are in place to monitor groundwater health?<\/strong><\/h2>\n
                    \n
                  1. India now has a robust, scientific system<\/strong> for annual assessment of groundwater quality and levels, providing valuable insights for action.<\/li>\n
                  2. Strong awareness programs and policy interventions, driven by leadership at the highest levels, are essential to contain the crisis.<\/li>\n
                  3. States need to act on CGWB findings and implement measures to curb nitrate contamination and over-extraction.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

                    Source: This post on Rising Nitrate Levels in India’s Groundwater has been created based on article \u201cIndia, cross-border insolvency and legal reform \u201d published in The Hindu on 4th January 2025. UPSC Syllabus topic: GS-3- Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment Context: India’s groundwater quality is facing a significant threat, as highlighted by… Continue reading Rising Nitrate Levels in India’s Groundwater<\/span><\/a><\/p>\n","protected":false},"author":10320,"featured_media":322338,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1230,30],"tags":[59,216,10498],"class_list":["post-322275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-9-pm-daily-articles","category-environment-2","tag-environment","tag-gs-paper-3","tag-the-hindu","entry"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/01\/Rising-Nitrate-Levels-in-Indias-Groundwater.png?fit=1280%2C853&ssl=1","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/322275","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\/10320"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=322275"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/322275\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media\/322338"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=322275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=322275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=322275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}