Original Presentation - Green Science Policy Institute
Transcription
Original Presentation - Green Science Policy Institute
Biomonitoring for Flame Retardants; Global to Personal to Policy Sharyle Patton, Director Commonweal Biomonitoring Resource Center Bolinas, CA spatton@commonweal.org Biomonitoring, the assessment of human exposure to natural or synthetic chemicals by measuring chemicals or their metabolites in human tissues and fluids, can be used to inform decision makers, focus scientific inquiry, and raise awareness about individual and community chemical body burdens. Global biomonitoring and global policy: The Stockholm Convention is an international treaty that regulates production, use and disposal of Persistent Organic Pollutants. (POPS). Effectiveness Evaluation Program monitors air, blood, serum and breastmilk around the globe. www.-pops-gmp.org Data from the Stockholm Convention Global Monitoring Program may help determine whether the Convention is effective in lowering exposures to POPs. Those FRs added to the POPs list for action may be reported in GMP in the future. International POPS Elimination Network – international network of public Interest groups that are engaged in Stockholm Convention discussions and decision-making. www.IPEN.org From global to personal – biomonitoring data indicates that children and developing fetuses are especially vulnerable to toxic chemical exposures at low levels. 287 chemicals of concern were found in cord blood from 10 babies born, 2004, United States (Environmental Working Group – US) Percentage of U.S. Pregnant Women with Detectable Level of Analyte Persistent environmental contaminants that enter the food system Based on analysis of representative sample of U.S. population by NHANES 2003-2004. Note: not all women were tested for all chemicals Source: Woodruff TJ, Zota AR, Schwartz JM 2011. Environmental Chemicals in Pregnant Women in the US: NHANES 2003-2004. Environ Health Perspect :-. doi:10.1289/ehp.1002727 Example of science research organization developing educational materials for use by decision makers, researchers, academicians, general public about early exposures/diseases Critical Windows of Development database www.endocrinedisruption.org The Endocrine Disruption Exchange: Critical Windows of Development Biomonitoring - personal pollution Laura Abulafia, MHS Participant in “Mind, Disrupted Biomonitoring project. Tested positive for chemicals considered to be neurotoxicants, incl pbdes.. «“Should my child be born with a serious disability or disorder, it would be a terrible responsibility wondering what I did wrong or what I could have done differently. I don’t want to live in fear that the food I eat and the products I use will impact my future children. And I shouldn’t have to. None of us should have to. Project - Biomonitoring Resource Center REPORT BACK? “ Participants and researchers who participated in report-back identified benefits: • increasing trust in science; • environmental health literacy; • individual and community empowerment; • motivation to reduce exposures. - Researchers as well as participants gained unexpected insights into the characteristics and sources of environmental contamination. -Participants are almost universally eager to receive their results and do not regret getting them.” Brody, J. G., S.C. Dunagan, R. Morello-Frosch, P. Brown, S. Patton, and R.A. Rudel. 2014. Reporting individual results for biomonitoring and environmental exposures: lessons learned from environmental communication case studies. Environmental Health 2014, 13:40 doi:10.1186/1476-069X-1340. http://www.ehjournal.net/content/13/1/40/abstract Vulnerable populations: Fire fighters – elevated levels of cancers LeMasters, JOEM, 20063499 × 2534 - occopwatch.com – Combined data in 32 studies of fire fighters for 20 different cancer types • Risks for some cancers were significantly increased in fire fighters ) including multiple myeloma, non-Hodgkin’s lymphoma, prostate, and testicular • Other cancers with possible links to fire fighting include: Testis, skin, malignant melanoma, brain, rectum, buccal cavity stomach, colon, and leukemia International Association of Fire Fighters study research. Fluorescent Screening Test gun indicates penetration of smoke and small particles through turn out gear at interfaces. Before exposure to aerosol spray Post exposure after wearing gear Exposures on neck hands chest wrist areas Pre exposure Post exposure The Women Fire Fighter Biomonitoring Collaborative (WFBC) • Purpose: Address women fire fighter concerns about levels of premenopausal breast cancers Women Firefighter Biomonitoring Collaborative Study (US) Study asks three questions: • Are levels of chemicals—including those with potential links to breast cancer risk—higher among women firefighters than other women? • Are there other, previously unmeasured, chemical exposures that are unique to women firefighters? • Are early indicators of biological changes associated chronic night shift work and chemical exposure more pronounced among women firefighters? These changes include: thyroid hormone disruption; lower levels of melatonin; changes in telomere length . WFBC Study Participants: 80 women fire fighters; 80 women office workers Biospecimens: Blood and urine Chemicals of concern: PBDEs, OH-PBDEs, PAHs, PFCs Non-targeted Chemical Analysis: a non-targeted analysis of chemicals in serum samples using Agilent 6550 QTOF/MS., prioritizing inclusion of high production chemicals, flame retardants, polyaromatic hydrocarbons, and other potential breast carcinogens and their metabolites. Individual results: to be conveyed to participants who request this information; Aggregated results: used to inform decision makers at state, regional, federal levels and to inform safer firefighter practices. In the US, Fire Fighters are active in: a. Promoting toxic chemicals policy reform at the regional and national level; b. Supporting fire fighters in developing improved safety protocols; c. Advocating for restrictions on the use of toxic chemical flame retardants in furniture; d. Developing methods for environmentally sound disposal methods for legacy flame retardants; Biomonitoring data will leverage these efforts. "We have to know that a chemical is either good or bad," Stefani said. "We can't sit around and wait for the science to be done to prove that it's bad only after it's already caused so many deaths, and that's the way it is right now." Tony Stefani, Retired fire fighter, cancer survivor, San Francisco, CA