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| Pesticide Residues in Water |
List of pesticides routinely analysed in waters:
| Pesticide |
LOD
(µg/ml) |
| Azinphos
ethyl |
0.1 |
| Azinphos
methyl |
0.1 |
| Carbophenothion |
0.1 |
| Chlorfenvinphos |
0.1 |
| Chlorpyrifos |
0.1 |
| Chlorpyrifos
methyl |
0.1 |
| Diazinon |
0.1 |
| Dichlobenil |
0.1 |
| Dichlorvos |
0.1 |
| Dimethoate |
0.1 |
| Ethion |
0.1 |
| Etrimfos |
0.1 |
| Fenchlorphos |
0.1 |
| Fenitrothion |
0.1 |
| Heptenophos |
0.1 |
| Malathion |
0.1 |
| Methacrifos |
0.1 |
| Methidathion |
0.1 |
| Mevinphos |
0.1 |
| Parathion |
0.1 |
| Parathion-me |
0.1 |
| Phosalone |
0.1 |
| Phosmet |
0.1 |
| Phosphamidon |
0.1 |
| Pirimiphos
methyl |
0.1 |
| Pyrazophos |
0.1 |
| Quinalphos |
0.1 |
| Triazophos |
0.1 |
| a-HCH |
0.05 |
| b-HCH |
0.05 |
| d-HCH |
0.05 |
| y-HCH |
0.05 |
| HCB |
0.05 |
| Endosulfan |
0.2 |
| pp-DDE |
0.1 |
| op-DDD |
0.1 |
| pp-DDD |
0.1 |
| op-DDT |
0.1 |
| pp-DDT |
0.1 |
| Aldrin |
0.05 |
| Dieldrin |
0.05 |
| Endrin |
0.05 |
| Heptachlor |
0.05 |
| Heptachlor
epoxide |
0.05 |
| Atrazine |
0.1 |
| Prometryn |
0.1 |
| Propazine |
0.1 |
| Propyzamide |
0.1 |
| Simazine |
0.1 |
| Terbutryn |
0.1 |
| Trietazine |
0.1 |
| Fenpropimorph |
0.1 |
| Penconazole |
0.1 |
| Oxadixyl |
0.1 |
| Permethrin |
0.05 |
| Flutriafol |
0.1 |
| Chlorothalonil |
0.1 |
Phenylurea herbicides:
| Pesticide |
LOD
(µg/l) |
| Monuron |
0.01 |
| Chlorotoluron |
0.01 |
| Methabenthiazuron |
0.01 > |
| Isoproturon |
0.01 |
| Linuron |
0.01 |
| Diuron |
0.01 |
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QTS analyse waters liable to contain
pesticide residues and therefore having the potential to introduce
these compounds onto crops or into the environment.
Irrigation waters are frequently taken from
surface water sources. Here there is a risk of run off from surrounding
land bringing about contamination with pesticides previously applied
elsewhere, possibly harmful and irrelevant to the product being
cultivated. Waters may also become contaminated with potent general
herbicides that interfere with plant growth.
Waste waters from fruit/vegetable processing
(wash waters) can become contaminated with residues
and discharges to the public waste water systems need to be monitored.
In both cases, screenings of the waters
can be for a broad range of compounds – a multiresidue screen as detailed below – or
tests can be confined to known risks eg residues of post harvest
fungicides applied to potatoes
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First Sclerotinia spray due in carrots
A protectant and systemic fungicide, Signum contains 267g/kg boscalid and 67g/kg pyraclostrobin, formulated as a WATER dispersible granule.
Source: farming, Date and Time of entry: Friday, July 30, 2010 16:28
Atrazine level drops in Drexel's WATER
DREXEL, Mo. | People in the western Missouri town of Drexel can resume drinking from the public WATER supply after tests showed a drop in levels of the herbicide atrazine.
Source: qts, Date and Time of entry: Wednesday, July 21, 2010 14:33
Full fat fungicide
Milk's fungicidal powers were discovered by Wagner Bettiol of the environmental laboratory of Embrapa, the Brazilian Agricultural Research Corporation, in Jaguariuna, north of São Paulo. Bettiol, who was looking for cheap ways to control plant pests, observed that byproducts from milk-processing factories killed powdery mildew on courgettes. So he decided to simply spray fresh milk on the plants to see if it had the same effect. To his surprise, he found that it did. In fact, spraying heavily infected plants twice a week with a mixture of one part cow's milk to nine parts WATER was at least as good at stopping mildew as the chemical fungicides fenarimol and benomyl, Bettiol discovered.
Source: NScientist, Date and Time of entry: Tuesday, February 16, 2010 15:08
Royal Dutch/Shell To Cleanup Former Pesticide Site
Anglo-Dutch oil and chemical group Royal Dutch/Shell has agreed to clean up a toxic site near Sao Paulo, Brazil where it stopped producing pesticides some 10 years ago, Reuters reported.
Shell recognized a week ago it had contaminated the groundWATER and community in Paulinia, some 90km east of Sao Paulo, where the company produced aldrin, dieldrin and endrin until 1990.
Source: bnamericas, Date and Time of entry: Tuesday, February 16, 2010 14:32
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