TheNational Green Tribunal has directed the Central Ground Water Board to investigate groundwater Chromium Contamination in Odisha’s Sukinda Valley and report back.
About Chromium Contamination:
- Chromium contamination is significant due to its high water solubility, leading to easy spread from the source.
- Confirmed presence of chromium in groundwater across multiple locations within Sukinda Valley.
- A Joint Committee confirmed the presence of dangerous levels of chromium at nine locations, pointing to a serious environmental and health hazard.
- The state government is tasked with providing clean water to the affected areas, underlining the gravity of the contamination.
- Further testing of groundwater in Sukinda Valley and surrounding areas is recommended to determine the full extent of contamination.
About Chromium:
- Chromium is a chemical element that exists mainly in two valence states in the environment:
- Trivalent Chromium [Cr(III)]: Essential for glucose and lipid metabolism.
- Hexavalent Chromium [Cr(VI)]: Known for its high carcinogenicity and toxicity.
- The maximum allowable limit of Cr(VI) in drinking water is 50 µg/L, as per Indian standard IS 10500.
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Frequently Asked Questions (FAQs)
What is chromium contamination?
Chromium contamination refers to the presence of chromium, especially the toxic hexavalent chromium, in the environment which can easily spread due to its high water solubility, posing serious health risks.
What is hexavalent chromium?
Hexavalent chromium [Cr(VI)] is a highly toxic and carcinogenic form of chromium that poses significant health risks, including cancer, upon exposure.
What is trivalent chromium?
Trivalent chromium [Cr(III)] is a form of chromium essential for human glucose and lipid metabolism, highlighting its importance in dietary nutrients.
What is the safe limit of chromium in drinking water?
The maximum allowable limit of hexavalent chromium [Cr(VI)] in drinking water is set at 50 µg/L according to Indian standard IS 10500.
What are the health risks associated with chromium contamination in water?
Chromium contamination, especially with hexavalent chromium, poses severe health risks including increased risk of cancers and other severe health conditions due to its toxicity.