What is the permissible limit of arsenic in groundwater?
0.01 mg/l
As per the BIS Standard for drinking water (BIS 1991 and subsequent modifications), themaximum permissible limit of Arsenic concentration in ground water is 0.01 mg/l.
What is the EPA limit on arsenic?
0.01 parts per million
EPA has set a limit of 0.01 parts per million (ppm) for arsenic in drinking water. The Occupational Safety and Health Administration (OSHA) has set a permissible exposure limit (PEL) of 10 micrograms of arsenic per cubic meter of workplace air (10 µg/m³) for 8 hour shifts and 40 hour work weeks.
WHO guideline value for arsenic?
5.5 National standards on Arsenic In a number of countries, the WHO provisional guidelines of 0.01 mg/L has been adopted as the standard. However, many countries have retained the earlier WHO guideline of 0.05 mg/L as the national standard or as an interim target.
What is a normal level of arsenic in water?
10 micrograms per liter
Health impacts of arsenic may not occur right away and can develop after many years, especially if you are in contact with arsenic at a low level over a long time. The Environmental Protection Agency (EPA) federal drinking water standard for arsenic in drinking water is 10 micrograms per liter (µg/L).
Which state of India is most affected by arsenic contamination of groundwater?
In India, the states of West Bengal, Jharkhand, Bihar, Uttar Pradesh, Assam, Manipur and Chhattisgarh are reported to be most affected by arsenic contamination of groundwater above the permissible level.
What is the maximum contaminant value of arsenic in drinking water according to WHO?
The WHO guideline value of arsenic in drinking water is 10 ppb. At present, in most of the arsenic-affected Asian countries, the permissible limit of arsenic in drinking water is 50 ppb.
Is arsenic a VOC?
What are Volatile Organic Compounds (VOCs)? The site is now in the middle of a multi-million dollar cleanup to remove a number of harmful substances, including arsenic, mercury, lead, petroleum byproducts and volatile organic compounds (VOCs).
WHO recommended limit of arsenic in drinking water?
10 μg/L
The current recommended limit of arsenic in drinking-water is 10 μg/L, although this guideline value is designated as provisional because of practical difficulties in removing arsenic from drinking-water.
How do you test for arsenic in water?
The total concentration of arsenic in drinking water can be detected by simple Gutzeit method, and some similar colorimetric methods of comparing stains produced on treated paper strips.
WHO limit for fluoride in drinking water?
1.5 mg F
The World Health Organization recommended limit of fluoride in drinking water is 1.5 mg F(-) L(-1), which is also the upper limit for fluoride in drinking water for several other countries such as Canada, China, India, Australia, and the European Union.
Which state of India is most affected by arsenic?
What is the national standard for arsenic in drinking water?
Regulation of Arsenic in Drinking Water. The national drinking water standard for arsenic has been 50 micrograms per liter ( g/L), which is 50 parts per billion. This standard was set in 1942.
What is arsenic in groundwater?
Arsenic is a naturally occurring element, but long-term exposure can cause cancer in people. There has been a substantial amount of research done to address arsenic in groundwater and drinking-water supplies around the country. The USGS studies local and national sources of arsenic to help health officials better manage our water resources.
Why does the USGS study arsenic?
The USGS studies local and national sources of arsenic to help health officials better manage our water resources. Arsenic and Drinking Water | U.S. Geological Survey Skip to main content
What is the EPA standard for arsenic in soil?
• EPA’s position is clear: the arsenic standard is meant to be 0.010 mg/L (10 ppb). • States need to take into account systems with arsenic levels between 10 ppb to 14 ppb as they establish their arsenic compliance strategy. 30 Determining Compliance & Rounding