Last year, cotton growers applied for an emergency exemption for the use of propazine
on three million acres of cotton because glyphosate was no longer effective.
The 12 herbicides being swallowed by children at Fairplay Elementary are: alachor etnanesulfonic acid, Atrazine, desethyl atrazine, desethyl-desisopropyl atrazine, desisopropyl atrazine, Diuron, hydroxy atrazine, metolachlor ethanesulfonic acid, norflurazon desmethyl, Prometon, Propazine
Pubertal development in female Wistar rats following exposure to propazine
and atrazine biotransformation by-products, diamino-S-chlorotriazine and hydroxyatrazine.
2-] Deethyldeisopropylatrazine Deisopropylatrazine Diazinon Dichlobenil Dichlorvos Dimethoate Ethoprop Ethylparathion Fenthion Fonophos Formothion Isazophos Isofenphos Malathion Methylazinphos Methylchloryrifos Methylparathion Methylpirimphos Metolachlor Metribuzin Mevinphos Pendimethalin Phorate Phosmet Prometon Propazine
Propetamphos Ronnel Simazine Terbacil Terbufos Tetrachlorvinphos Trifluralin
, terbuthylazine, and hexazinone are or have been used in the Edendale nursery, and metribuzin is attributed to horticultural operations (potatoes) in the area (Hughes 2000).
Deethyl atrazine also can be a by-product of propazine
degradation (Thurman and others, 1998).
Environmental Group Applauds Agency for Rejecting Emergency Propazine
Use, Warns Agency of Foreseeable Dangers of Toxic Treadmill Agriculture
Chloro-s-triazines, introduced in the late 1950s, include atrazine (ATR), simazine, propazine
, terbutylazine, and cyanazine (Worthing and Walker 1987).
The median concentrations for cyanazine, metribuzin, and propazine
were all [is less than] 0.
The request, which comes through the Texas Department of Agriculture, seeks an allowance on 3 million acres for the highly toxic pesticide propazine
, not registered for use on cotton.
In addition to atrazine, simazine, and propazine
, two metabolites--atrazine-desethyl and atrazine-desisopropyl--induced aromatase activity in H295R cells concentration-dependently (0.
Atrazine and chloro-s-triazines simazine and propazine