Arsenic health hazards

EH 73 Arsenic and its compounds health hazards and precautionary measures... 

Many very hazardous solvents, such as benzene and carbon tetrachloride, were widely used until the 1970s. The situation was very similar for the use of pesticides. Among the toxic pesticides that were still in wide use 20 years ago were chlorophenols, DDT, lindane, and arsenic salts, all of which are classified as human carcinogens as well as being acutely toxic. Fortunately, use of these kinds of very toxic chemicals is now limited in the industrialized world. However, because the number of chemicals used in various industries continues to increase, the risks of long-term health hazards due to long-term exposure to low concentrations of chemicals continues to be a problem in the workplace. 

NIOSH. 1981. Health hazard evaluation report HETA 81-176-968, Rocky Mountain Arsenal, Basin F, Commerce City, Colorado. Cincinnati, OH National Institute for Occupational Safety and Health. NTIS No. PB83-161257. 

Paris green - copper acetoarsenite, (CuO) 3 AS2O3 Cu(C2H302) -was widely used in blue flame mixtures until a few years ago. It produces a good blue flame, but it has all but vanished from commercial formulas because of the health hazards associated with its use. (It contains arsenic )... 

What are things made from We have become a society obsessed with questions about composition, and for good reason. Lead in petrol shows up in the snow fields of Antarctica mercury poisons fish in South America. Radon from the earth poses health hazards in regions built on granite, and natural arsenic contaminates wells in Bangladesh. Calcium supplements combat bone-wasting... 

Ghosh, A. (2005) Arsenic Hot Spots Detected in the State of Bihar (India) a Serious Health Hazard for Estimated Human Population of 5.5 Lakhs. International Conference on Environmental Management, Hyderabad. 

Sterling silver, silver, and copper, or gold, can be used to cast a jewelry piece with a minimal amount of health hazard. Alloys with large amounts of cadmium, chromium, nickel, antimony, and arsenic should not be used. 

Fluoride-related health hazards are associated with the use of fluoride-contaminated water for drinking and cooking. This corresponds only to 2-4 L per capita per day. Fluoride removal in rural areas in LDCs, where centralized water treatment and distribution facilities are unavailable, should consequently be carried out at a household level and the system applied should be simple and affordable. In this regard, tea bag POU system becomes handy. Although this kind of system has not been specifically reported for water defluoridation, it has been tested for arsenic [37,107], It is therefore a short-term potential technique worth considering. In this technique, adsorption medium is placed in a tea bag-like packet, which is subsequently placed in a bucket of water to be treated. To ensure faster defluoridation kinetics, the bag should be swirled inside the water. It therefore operates like a batch reactor and hence requires a relatively longer adsorption time to achieve the permissible levels. Since the swirling motion is supposed to be human-powered, the technique would require a material with very fast kinetics or very fine adsorption media. 

A variety of industrial materials, including metallic compounds (both organic and inorganic), are produced by multiple anthropogenic activities. Because of the manner of use and disposal, these often reach the environment and cause a plethora of potential health hazards.4 Of the above symptoms, the risk for CNS disturbances in a child s development or in the human adult has gained importance. Information concerning different metals (e.g., arsenic, cadmium, chromium, lead, mercury, many other compounds) and their possible carcinogenicity has been documented as a national priority in the literature (Table 3-1).6-1011... 

Available data indicate that these organic derivatives have low toxicity, and ingestion of arsenic in this form is not generally considered to be a health hazard. 

United States was used for this purpose. The most common compound used for this purpose was chromated copper arsenate (CCA). Wood preserved with CCA is referred to as pressure-treated wood. Wood treated with CCA is now recognized as a health hazard. Many authorities believe that humans and other animals exposed to pressure-treated wood may develop health problems because of arsenic present in the wood. For this reason, the U.S. Environmental Protection Agency (EPA) issued a ban on the use of CCA for treating wood, effective December 31, 2003. Pressure-treated wood may no longer be used for residential construction, although its use for industrial production is still permitted. 

In Germany, there exists no maximum allowable workplace concentration (MAK) value for arsenic and its compounds as the Commission for the Investigation of Health Hazards of Chemical Compounds... 

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