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November 6, 2011
Zhuhai oyster cadmium exceeded
[News] newspaper recently detected in Zhuhai city of culture zones of the oyster farmers market oysters and heavy metal content, the results show that apart from the Shan hanging oyster indicators in line with standards from Hengqin New, Golden Bay, Port of Gaolan Oyster samples were taken there is a certain degree of heavy metal pollution, including Golden Bay the highest cadmium content in oyster samples, exceeded one three to six times. Experts point out that the body can cause long-term chronic intake of excessive heavy metal poisoning.
The detection of four oyster farms
For the media, "the Guangdong coast oysters exceeded seven hundred and forty times copper, cadmium exceeded nine times", a few days ago, Agriculture, Fisheries and Marine Water Zhuhai Zhuhai oysters comprehensive survey of production and market sales, sending technical personnel to Zhuhai four two oyster farming areas and bazaars samples were collected in batches sent to Zhuhai Entry-Exit Inspection and Quarantine Technology Center and the Guangdong Provincial Oceanic and Fishery Environment Monitoring Center, the test items for lead, cadmium, copper three heavy metals content.
As the current national standard "of contaminants in food limited" listed in the aquatic organisms fish, shellfish not listed there, so this test to the Ministry of Agriculture ministry standard "free food oysters" shall prevail. The standard of safety standards for heavy metals: lead is less than or equal to a milligram per kilogram of cadmium is less than or equal to four milligrams per kilogram. Copper as an essential trace element, has not included safety indicators management, there is no copper in the standard test items.
Hengqin contaminated Golden Bay
Test results show, submission of samples were below the limit of lead content, which Guishan Hai domain and market samples were not detected. Cadmium content testing, Gui Shanhai domain and market samples below the limit, Hengqin New Area, the Bay Area, Gaolan Port samples were beyond the prescribed limits ○ 点 六 nine times, one three to six times and doubled. Copper, although there is no national standard reference, but the results are not optimistic, Gaolan Port Hengqin New Area, the Bay Area for inspection samples of the copper content of oysters were one hundred thirty-six milligrams per kilogram, two hundred and twelve milligrams, three hundred eleven milligrams, higher than the West Bank, outside the context of the Pearl River Estuary oysters Guishan Hai domain samples (per kg 45.1 五 mg).
Experts said the Hengqin New, Golden Bay, oyster samples Gaolan port large lanes of cadmium in an increasing trend, which is the Pearl River estuary currents flow from east to west is closely related to Zhuhai coastal waters is the main source of cadmium in the region, the Pearl River Estuary West Bank areas outside the Gui Shanhai less contamination in the domain. Oyster farming in different ways to form the difference of metal pollution, including "hanging support" culture as opposed to "fixing" type farming more environmentally clean, due to "keep hanging" oysters reduce the risk of contact with sediment, reducing the chance of contamination .
Control of food intake in free move
Oyster species of oysters, mostly in shallow water in farming, as often as humic substances in fresh water, in sea water is polluted, the oysters will have heavy metal deposition in vivo. If the one-time intake of cadmium body will acute poisoning, nausea, vomiting, diarrhea, malaise, muscle pain, prostration can occur due to dehydration, acute renal failure and even death; such as long-term excessive intake of heavy metals, will lead to chronic poisoning, caused by kidney, lung and bone damage.
more..
Zhttp://www.macaodaily.com/html/2011-11/06/content_644915.htm
November 6, 2011
Zhuhai oyster cadmium exceeded
[News] newspaper recently detected in Zhuhai city of culture zones of the oyster farmers market oysters and heavy metal content, the results show that apart from the Shan hanging oyster indicators in line with standards from Hengqin New, Golden Bay, Port of Gaolan Oyster samples were taken there is a certain degree of heavy metal pollution, including Golden Bay the highest cadmium content in oyster samples, exceeded one three to six times. Experts point out that the body can cause long-term chronic intake of excessive heavy metal poisoning.
The detection of four oyster farms
For the media, "the Guangdong coast oysters exceeded seven hundred and forty times copper, cadmium exceeded nine times", a few days ago, Agriculture, Fisheries and Marine Water Zhuhai Zhuhai oysters comprehensive survey of production and market sales, sending technical personnel to Zhuhai four two oyster farming areas and bazaars samples were collected in batches sent to Zhuhai Entry-Exit Inspection and Quarantine Technology Center and the Guangdong Provincial Oceanic and Fishery Environment Monitoring Center, the test items for lead, cadmium, copper three heavy metals content.
As the current national standard "of contaminants in food limited" listed in the aquatic organisms fish, shellfish not listed there, so this test to the Ministry of Agriculture ministry standard "free food oysters" shall prevail. The standard of safety standards for heavy metals: lead is less than or equal to a milligram per kilogram of cadmium is less than or equal to four milligrams per kilogram. Copper as an essential trace element, has not included safety indicators management, there is no copper in the standard test items.
Hengqin contaminated Golden Bay
Test results show, submission of samples were below the limit of lead content, which Guishan Hai domain and market samples were not detected. Cadmium content testing, Gui Shanhai domain and market samples below the limit, Hengqin New Area, the Bay Area, Gaolan Port samples were beyond the prescribed limits ○ 点 六 nine times, one three to six times and doubled. Copper, although there is no national standard reference, but the results are not optimistic, Gaolan Port Hengqin New Area, the Bay Area for inspection samples of the copper content of oysters were one hundred thirty-six milligrams per kilogram, two hundred and twelve milligrams, three hundred eleven milligrams, higher than the West Bank, outside the context of the Pearl River Estuary oysters Guishan Hai domain samples (per kg 45.1 五 mg).
Experts said the Hengqin New, Golden Bay, oyster samples Gaolan port large lanes of cadmium in an increasing trend, which is the Pearl River estuary currents flow from east to west is closely related to Zhuhai coastal waters is the main source of cadmium in the region, the Pearl River Estuary West Bank areas outside the Gui Shanhai less contamination in the domain. Oyster farming in different ways to form the difference of metal pollution, including "hanging support" culture as opposed to "fixing" type farming more environmentally clean, due to "keep hanging" oysters reduce the risk of contact with sediment, reducing the chance of contamination .
Control of food intake in free move
Oyster species of oysters, mostly in shallow water in farming, as often as humic substances in fresh water, in sea water is polluted, the oysters will have heavy metal deposition in vivo. If the one-time intake of cadmium body will acute poisoning, nausea, vomiting, diarrhea, malaise, muscle pain, prostration can occur due to dehydration, acute renal failure and even death; such as long-term excessive intake of heavy metals, will lead to chronic poisoning, caused by kidney, lung and bone damage.
more..
Zhttp://www.macaodaily.com/html/2011-11/06/content_644915.htm