chemical information
CAS RN:

959-98-8

Chemical Class:

Organochlorine Pesticide (OC)

Found in these people:

Baby #2, Baby #3, Baby #4, Baby #10, Kathy Fowler

Found in these locations:

Rockville, MD





alpha-Endosulphan

Organochlorine chemical, a class largely banned in the U.S. that builds up in the body over time, linked to cancer and reproductive harm.

alpha-Endosulphan has been found in 7 of the 27 people tested in EWG/Commonweal studies.


Top health concerns for alpha-Endosulphan (References)

health concern or target organ weight of evidence
Reproduction and fertilityunknown


Results for alpha-Endosulphan

in blood serum (lipid weight)

Showing results from EWG/Commonweal Study #4, industrial chemicals and pesticides in cord blood, San Francisco Reporter, EWG Study #8, chemicals in mother and 2 children, EWG Study #3, industrial chemicals and pesticides in adults, EWG/Commonweal Study #1, industrial chemicals and pesticides in adults

EWG/Commonweal results

  • geometric mean: 0.0275 ng/g (lipid weight) in blood serum
  • found in 7 of 27 people in the group
ng/g (lipid weight) in blood serum 0.827


alpha-Endosulphan results


Detailed toxicity classifications (References)

classification governing entity/references
Reproductive effects - weight of evidence unknown/unassessedDamgaard, I. N., N. E. Skakkebaek, et al. (2006). Persistent pesticides in human breast milk and cryptorchidism. Environ Health Perspect 114(7): 1133-8.