chemical information
CAS RN:

57-74-9

Chemical Class:

Organochlorine Pesticide (OC)

Manufacturing/Use Status

banned for use/manufacture in the U.S.

Found in these people:

Baby #1, Baby #2, Baby #3, Baby #4, Baby #5, Baby #6, Baby #8, Baby #10, Anonymous Adult 1, Kathy Fowler, Sara Corbett

Found in these locations:

Rockville, MD; NY, USA





oxy-Chlordane

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

oxy-Chlordane has been found in 15 of the 18 people tested in EWG/Commonweal studies. It has also been found in 2,308 of the 4,821 people tested in CDC biomonitoring studies.


Top health concerns for oxy-Chlordane (References)

health concern or target organ weight of evidence
Reproduction and fertilityunknown


Results for oxy-Chlordane

in blood serum (lipid weight)

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

EWG/Commonweal results

  • geometric mean: 2.22 ng/g (lipid weight) in blood serum
  • found in 15 of 18 people in the group

CDC biomonitoring results

  • geometric mean: 6.75 ng/g (lipid weight) in blood serum
  • found in 2308 of 4821 people in the group
0 ng/g (lipid weight) in blood serum 289


oxy-Chlordane 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.