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Although hardness may have significant aesthetic effects, a maximum acceptable level has not been established because public acceptance of hardness …
Although benzene is naturally occurring at low concentrations, its presence in the environment is mostly related to human activities. Gasoline …
There is no evidence of adverse health effects specifically attributable to calcium in drinking water. Insufficient data are available to …
It is not considered necessary to establish a maximum acceptable concentration for chloramines in drinking water, based on the low …
An aesthetic objective of ≤250 mg/L has been established for chloride in drinking water. At concentrations above the aesthetic objective, …
It is not considered necessary to establish a guideline for chlorine in drinking water, based on its low toxicity at …
There is no consistent, convincing evidence that ingested asbestos is hazardous. There is, therefore, no need to establish a maximum …
Learn about the health risks of asbestos exposure. Asbestos, if inhaled, can cause cancer and other diseases. There's no consistent …
Antimony may enter the aquatic environment by way of natural weathering of rocks, runoff from soils, effluents from mining and …
Arsenic is a natural element that is widely distributed throughout the Earth's crust. It is often found naturally in groundwater, …