1 | EPA (2015). Fact Sheet (PCBs): Region 10 |
2 | EPA Region 10 (2019). 2019 Status Update: Columbia River Basin Toxics Reduction, July 2019, issued by U.S. Environmental Protection Agency, Region 10 |
3 | EPA (2019). Polychlorinated biphenyls (PCBs): https://www.epa.gov/sites/production/files/2016-09/documents/polychlorinated-biphenyls.pdf |
4 | WHO (2003). Polychlorinated Biphenyls: Human Health Aspects |