2022年12月7日 · Arsenic is highly toxic in its inorganic form. Contaminated water used for drinking, food preparation and irrigation of food crops poses the greatest threat to public health from arsenic. Long-term exposure to arsenic from drinking-water and …

Arsenic contamination of groundwater is a form of groundwater pollution which is often due to naturally occurring high concentrations of arsenic in deeper levels of groundwater. It is a high-profile problem due to the use of deep tube wells for water supply in the Ganges Delta, causing serious arsenic poisoning to large numbers of people.

2019年3月1日 · The USGS investigates the presence and effect of arsenic in drinking water supplies, monitors the worldwide distribution of arsenic in groundwater, and assesses the impact of arsenic on local stream sediment chemistry.

Arsenic is released into the air by volcanoes, through weathering of arsenic-containing minerals and ores, and by commercial or industrial processes. Arsenic occurs naturally in the earth’s crust, and much of its dispersion in the environment stems from mining and commercial uses.

2021年5月1日 · Arsenic contamination of groundwater is estimated to be affecting 500 million people around the globe. Continuous exposure to high arsenic water causes pigmentation, hyperkeratoses, ulceration, skin cancer and also affects liver, kidney, heart, and lungs (Sun et al., 2019 and references therein).

2024年10月10日 · Contamination from mining and fracking, coal-fired power plants, arsenic-treated lumber, and arsenic-containing pesticides also contributes to increased levels of arsenic in certain locations. Arsenic may be found in foods, including rice …

The EPA maximum contaminant level for arsenic in drinking water is 10 ppb [ATSDR 2007]. The U.S. Geological Survey has mapped arsenic distribution in soils in the United States. For the Conterminous United States, the geometric mean arsenic level …

Ingestion of food containing arsenic is the main source of exposure for the general U.S. population. Intake from air, soil, and drinking water usually contributes much less to human exposures in the United States. Food can contain organic and inorganic forms of arsenic.

2023年6月12日 · Although arsenic homicides are commonly publicized, the primary source of arsenic toxicity to the general population is by contaminated water, soil and food products. Arsenic (As) is a nearly tasteless odorless toxic metalloid element that is …

2018年4月24日 · Arsenic poisoning, or arsenicosis, occurs after the ingestion or inhalation of high levels of arsenic. Arsenic is a type of carcinogen that’s gray, silver, or white in color.