To Investigate the Degradation Status of Expired Pesticides Based on the Formulation and Quality Control Prameters

In many cases environmental contamination with hazardous and harmful wastes is irreversible. Expired pesticides stockpiles in worldwide warehouses are considered as one of these types of wastes. Lack of attention to these warehouses makes the horrible effects to human’s health and environment. This study investigated the possibility of recycling the expired pesticide stockpiles of agricultural supportive services company. Quality control tests were performed according to the FAO, CIPAC and pesticide manufacturer's guidelines.The results were classified based on the date of production, type of formulation, quality control parameters and EC formulations manufacturers. Data were analyzed by Chi-Square test, in case of significance; the risk test was performed to determine the relative risk for the variables. Result showed a no-significant correlation between the time lagged after production of pesticides and percentage degradation of pesticides. The percent degradation of EC, SC, WP and SL formulation were 62%, 60%, 32% and 38 % respectively. Active ingredient in three formulations included EC, SL, WP and pH in SC formulation were unacceptable changes more than other the quality control parameters.Also, theresults showed that pesticides with EC formulations were produced in the country have more durability than Indian/Chinese.