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Endosulfan in China 1-gridded usage inventories
Hongliang Jia1, Yi-Fan Li, Degao Wang
1International Joint Research Center for Persistent Toxic Substances, Dalian Maritime University, 1 Linghai Road, Dalian, 116026, People's Republic of China.
Environmental Science and Pollution Research International
|September 5, 2008
Summary
This study quantifies historical endosulfan production and usage in China, creating the first national gridded usage inventory. Findings reveal intensive pesticide application in specific provinces, crucial for risk assessment and environmental studies.
Area of Science:
- Environmental Science
- Agricultural Chemistry
- Toxicology
Background:
- Endosulfan, a genotoxic organochlorine pesticide (OCP), is a global pollutant.
- China lacks national endosulfan usage inventories despite widespread application since 1994.
- This study addresses the critical need for endosulfan usage data in China.
Purpose of the Study:
- To quantify historical endosulfan production and usage in China.
- To compile the first national gridded historical usage inventories for endosulfan.
- To lay the groundwork for emission and residue inventory development.
Main Methods:
- Developed an estimation method due to data scarcity.
- Collected crop-specific application data and national cropland areas.
- Utilized Geographic Information System (GIS) for gridded data allocation (1/4° x 1/6° resolution).
Main Results:
- Endosulfan use began in 1994 (cotton) and 1998 (other crops).
- Estimated total usage from 1994-2004 was approximately 25,700 tons.
- Henan Province showed the highest usage, with intensive application areas identified across several provinces.
Conclusions:
- Generated the first national gridded endosulfan usage inventory for China.
- Inventories provide spatial distribution at provincial and prefecture levels.
- The created inventory supports further endosulfan research and risk assessment.
