Ecotoxicological Information AQUATIC stainless steel folding table Toxicity: 96 hour LC50 - Bluegil

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New report shows that the breakdown products of herbicide rimsulfuron, which are increasingly used by potato trickles down from the fields in worrying quantities. The infiltration continues for up to several years after the poison was injected in the field. By Michael Tornberg August 28, 2009 at. 14:16
Groundwater in potato fields is in danger of being contaminated. It is one of the conclusions of the 2009 report stainless steel folding table of the research project 'warning system for pesticide leaching to groundwater' (VAP).
The report shows that herbicide rimsulfuron applied to potato fields, produces degradation products leached in concentrations above the limit of 0.1 micrograms. The results concern to senior researcher at Geus, Jeanne Kjær, who helped to prepare the report.
"It is worrying that the degradation products of rimsulfuron not just washed out in high concentrations, but they also continue stainless steel folding table to be leached in high concentrations, several years after the field was sprayed," she says. Sale of rimsulfuron is increasing
According to figures from the EPA pesticide statistics, sales of rimsulfuron in recent years been increasing. From 2003 to 2007, sales thus from 145 kg to 209 kg, and according to the Agency's calculations were 27.867 hectares in 2007 treated with rimsulfuron.
Nevertheless, it is still legal to use rimsulfuron in agriculture. The Environmental Protection Agency has so far chosen to take action stainless steel folding table against the use of the pesticide, but writes the following on their website:
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"It is worrying that the degradation products of rimsulfuron stainless steel folding table not just washed out in high concentrations, stainless steel folding table but they also continue to be leached in high concentrations, several years after the field was sprayed," she says.
It's amazing what can worry a senior researcher at GEUS. Most worrying, however, is the senior scientist not present investigations result in a balanced way - eg. she could just be mentioned that the studies do not indicate the detection of any health problem or a threat to the environment. I wonder why the senior scientist does not mention it, but instead try to make a bogey? stainless steel folding table Then she certainly stainless steel folding table did not come in ing.dk - but what does it do? And how will jounalisten find evidence headline "Potato Mark threatens the Danish stainless steel folding table drinking water"? Mon journalist at all understand what he writes?
Who benefits that these things are presented as devastating and worrying? It can not benefit the environment and not ordinary human health - but perhaps it can benefit senior researcher and journalist (until that gets a credibility problem)?
Rimsulfuron has been found to be non-toxic to førsøgsdyr, ducks, small animals, etc. in the environment. The substance may only be used in very small amounts referred to in a way that you would think that this asset is concerned. An inexpert reader believe there is strong poison, but the substance is not at all toxic to anything but what it is directed: some weeds - in the same way as a plow is not dangerous to humans and animals just because it can turn weeds, etc.. to death.
Note that based on rat data can be expected that consumption of approximately 250 g of the drug at once will not be acutely harmful to humans. The substance is used in potatoes in an amount of 12.5 g per hectare. The substance decomposes naturally in the earth, but if we assume that does not happen and it all seeps into the ground or drainage water, can a man so drink all the water percolating through the soil of approx. 20 acres in one year, ie approx. 100 000 tonnes of water (at once!) Without stainless steel folding table being acutely poisoned stainless steel folding table by rimsulfuron.
Put another way, you can use the drug for 10 million years on the sandy potato fields without coming near a concentration that is harmful to daphnia and people. Does it make sense to be concerned about their toxicity? Where appropriate, there is almost no substance, natural or synthetic (including food substances), there is a toxin.
Animal Data Acute Oral LD50:> 5,000 mg / kg in rats. Very low toxicity by ingestion. Acute Dermal LD50:> 2,000 mg / kg in rabbits. Slightly two moderately toxic by skin contact. 4-hour inhalation LC50:> 7.5 mg / L in rats. Very low toxicity by inhalation. DuPont TranXit Herbicide is not a skin irritant or skin sensitizer in animals. It producerat moderate eye irritation in rabbit eyes but has been classified as a non-irritant enligt guidance Provided in EEC Directive stainless steel folding table 83/467. ECOLOGICAL INFORMATION
Ecotoxicological Information AQUATIC stainless steel folding table Toxicity: 96 hour LC50 - Bluegill sunfis