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Latest Cadmium Stories

2008-02-24 03:00:30

By Kumar, Sunil Sharma, Vishal; Bhoyar, R V; Bhattacharyya, J K; Chakrabarti, Tapan ABSTRACT: The effect of heavy metals on the activities of earthworm species Eudrillus eugineae was studied during vermicomposting of municipal solid waste (MSW) spiked with heavy metals. The activities of earthworms, in terms of growth and biomass production and number of cocoons produced, were monitored periodically, and the concentration of heavy metals in earthworms and substrates was determined at...

2007-11-21 03:00:43

By Liang, Yong-mei Jun, Ma; Liu, Wei ABSTRACT: A laboratory study demonstrated that ferrate pretreatment significantly enhanced lead and cadmium removal in alum coagulation, under the conditions of natural surface water. The enhancement of lead removal was approximately 21 to 37% by ferrate pretreatment at a dosage of 1 to 5 mg/L. The enhanced removal of cadmium by ferrate pretreatment at a dosage of 1 to 5 mg/L exceeded the removal by alum coagulation alone 2- to 12-fold. Cadmium is much...

2006-07-07 09:41:16

GENEVA (Reuters) - Food experts on Friday set new international standards on maximum allowed levels of contaminants including lead and cadmium, as well as aflatoxins, so as to improve food safety, officials said. The standards, issued by the Codex Alimentarius Commission, are voluntary for countries, but apply to food consignments that move in international trade, they added. "The new standards adopted this week will thus go a long way to protecting human health, as they set out new,...

2006-06-22 15:05:00

By Anthony J. Brown, MD NEW YORK (Reuters Health) - Women with the highest levels of cadmium in their urine have more than a two-fold higher risk of breast cancer than women with the lowest levels, according to a new study. However, further studies are needed to determine if these elevated levels are a cause or effect of breast cancer. Although cadmium, a heavy metal, has been classified as a probable cancer-causing substance by the US Environmental Protection Agency, until now no human...

2006-05-03 05:40:00

BRUSSELS -- Used batteries in the European Union will have to be collected and recycled under rules agreed by EU lawmakers and member states this week that aim to protect people and the environment from the effects of dangerous metals. The European Commission tabled the rules in 2003 to boost battery recycling rates and clamp down on using cadmium and mercury in batteries to stop the toxic metals from seeping into water supplies and polluting the atmosphere. Under the agreement announced on...

2006-03-06 03:40:00

By Ben Blanchard and Lucy Hornby BEIJING -- The Chinese province of Hunan, home to China's largest zinc smelter, is considering closing heavy industrial plants that pollute, a senior government official said on Monday. Hunan, where former leader Mao Zedong was born, has rich deposits of lead and zinc. Smelters line the same rivers that provide drinking water for millions in the province. The southern province has invested in environmental monitoring and began last winter to close small plants...

2006-01-27 08:51:59

SHANGHAI (Reuters) - Three officials of a south China smelter that leaked cadmium into a major river, leaving several towns without drinking water for days, were taken into custody and others were also punished, state media said on Friday. Party and government officials in Guangdong province on Wednesday announced that 15 people were responsible for dumping 1,000 tonnes of waste water contaminated with cadmium into the North River during regular maintenance operations in December,...

2006-01-10 00:36:19

BEIJING (Reuters) - Chinese authorities are playing down the severity of the latest in a series of river pollution scares and have failed to stop further contamination, the China Youth Daily said on Tuesday. A project to clean up a stretch of the Xiangjiang River in southern Hunan province ended up polluting it last week when cadmium seeped out from silt dredged off the river bottom, domestic media reported. The poisoning of the waterway, a tributary of China's longest river, the...

2006-01-10 00:50:00

BEIJING -- Chinese authorities are playing down the severity of the latest in a series of river pollution scares and have failed to stop further contamination, the China Youth Daily said on Tuesday. A project to clean up a stretch of the Xiangjiang River in southern Hunan province ended up polluting it last week when cadmium seeped out from silt dredged off the river bottom, domestic media reported. The poisoning of the waterway, a tributary of China's longest river, the Yangtze,...

2005-12-25 22:30:33

BEIJING (Reuters) - A spill of toxic cadmium that sparked China's second major environment scare of the winter should be safely diluted before the fouled river water reaches major cities in the south, the China Daily said on Monday. Authorities had dumped 380 tonnes of chemicals and opened reservoirs to dilute the more than 1,000 tonnes of cadmium-contaminated water a zinc smelter spilled into the North River on December 15, the newspaper said. "The cadmium content of the slick...


Latest Cadmium Reference Libraries

28_90a9ebba6a5e0b03847c37d7c52ad072
2005-05-26 12:02:30

Cadmium is a chemical element in the periodic table that has the symbol Cd and atomic number 48. A relatively rare, soft, bluish-white, toxic transition metal, cadmium occurs with zinc ores and is used largely in batteries. Notable characteristics Cadmium is a soft, malleable, ductile, bluish-white bivalent metal which can be easily cut with a knife. It is similar in many respects to zinc but lends itself to more complex compounds. The most common oxidation state of cadmium is +2,...

28_64ba43868fe5d784d85bf5846bb539ad
2005-05-25 17:25:52

Silver is a chemical element in the periodic table that has the symbol Ag (from the traditional abbreviation from the Latin Argentum) and atomic number 47. A soft white lustrous transition metal, silver has the highest electrical and thermal conductivity of any metal and occurs in minerals and in free form. This metal is used in coins, jewelry, tableware, and photography. Notable characteristics Silver is a very ductile and malleable (slightly harder than gold) univalent coinage metal...

28_66bc72775f3eb8353bc01ba3c861703a
2005-05-25 10:26:23

Zinc is a chemical element in the periodic table that has the symbol Zn and atomic number 30. Notable characteristics Zinc is a moderately reactive metal that will combine with oxygen and other non-metals, and will react with dilute acids to release hydrogen. The one common oxidation state of zinc is +2. Applications Zinc is the fourth most common metal in use, trailing only iron, aluminium, and copper in annual production. - Zinc is used to galvanize metals such as steel to...

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