Ad
related to: hexavalent chromium monitoring equipment company reviews and ratings
Search results
Results from the WOW.Com Content Network
Hexavalent chromium is a toxic metal, known to cause several health problems and is a carcinogen. Exposure to hexavalent chromium can cause irritation and problems in the respiratory tract, stomach, and small intestine. It is linked to several cancers, such as lung cancer, oral cancer, and intestinal cancer. [11]
Satellite image of Hinkley, Barstow and Harper Lake, California. From 1952 to 1966, Pacific Gas and Electric Company (PG&E) dumped about 370 million U.S. gallons (1.4 × 10 9 liters) of chromium-tainted wastewater into unlined wastewater spreading ponds around the town of Hinkley, California, located in the Mojave Desert about 120 miles (190 kilometers) north-northeast of Los Angeles.
This study looks at chronic oral exposure of hexavalent chromium in rats, and its association with cancer. The other study mentioned is a human health assessment of chromium, titled Toxicological Review of Hexavalent Chromium. The final human health assessment is currently in the stage of draft development. [47] This stage is the first of seven.
Chromium toxicity refers to any poisonous toxic effect in an organism or cell that results from exposure to specific forms of chromium—especially hexavalent chromium. [1] Hexavalent chromium and its compounds are toxic when inhaled or ingested. Trivalent chromium is a trace mineral that is essential to human nutrition.
In 1996 a 46 m long, 7.3 m deep, .6 m thick PRB was installed at a Coast Guard Facility near Elizabeth City, NC. The goal of this PRB was to remediate a contaminant plume of trichloroethylene (TCE) and hexavalent chromium (Cr (VI)). The PRB took only 6 hours to install using a continuous trenching technique, which simultaneously removed the pre ...
The contamination resulted in a $333 million settlement in 1996. The clean-up process is ongoing as of 2022, with monthly monitoring reports submitted by PG&E. [70] This case has led to California being the only state in the US to adopt an MCL of 10 ppb specifically for hexavalent chromium instead of relying on an overall total chromium count. [71]
Chromium trioxide (also known as chromium(VI) oxide or chromic anhydride) is an inorganic compound with the formula CrO 3. It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. [6] This compound is a dark-purple solid under anhydrous conditions and bright orange when wet. The substance dissolves in water ...
ChemRisk is a Delaware Limited Liability Company, a for-profit scientific consulting firm headquartered in San Francisco, California, that is part of Cardno ChemRisk. [1] [2] ChemRisk founder and former president, Dennis Paustenbach, "has long been an expert witness and top consultant" to "scores of companies in the chemical, energy and medical products industries" facing lawsuits over ...
Ad
related to: hexavalent chromium monitoring equipment company reviews and ratings