Download Technical Comments on the Brochure and updates on EDC

Technical Comments on the Brochure and updates on EDC work
AG on EDCs meeting 25-26th September 2015
Derek Muir
Research Scientist, Environment Canada
Comments on the Brochure
• While the “EDCs and alligators” is a nice example there are some well known
confounding effects eg diet, thiamine deficiency etc
• A stronger example is the study by Kidd et al PNAS 2007 on the collapse of a fish
population after exposure to a synthetic estrogen
• Also synthetic estrogens in wastewaters and feminization of fish
• Another well known example is the feminization of fish downstream of pulp
and paper mill effluents ie could be alkylated PAHs but not estrogens
• In general there could be more emphasis on chemicals in consumer products
(phthalates, BPA) and pharmaceuticals, and less on POPs
• Under “moving forward” I think the Stockholm Convention, which addresses
many of the chemicals listed in this brochure, should be highlighted
• By taking global action on POPs, exposures to EDCs are being addressed to
some extent (depending on their relative importance as EDCs)
Assessment Activities related to EDCs that may be of interest
(I’ve been involved as a contributor and co-leader in those listed below)
Arctic Monitoring and Assessment Program (AMAP) – new assessment reports in prep
• Temporal trends of POPs (early 2016)
• Contaminants of Emerging Concern in the Arctic (mid-2016)
• Effects of contaminants (POPs and mercury) on Arctic wildlife (2017)
Contact: Simon Wilson ([email protected])
Global Monitoring Program on POPs
• 2nd Global Monitoring Report (latest draft Sept 2015) – has a good summary of
POPs data including human exposure (due to be published in early 2016)
Canadian Arctic Contaminants Assessment report (“POPs in Canada’s North - 2013”)
Has time trend data for POPs and “emerging” contaminants which may be of
interest in terms of EDC exposures of wildlife
Available at: http://www.science.gc.ca/default.asp?lang=En&n=6D4B6162-1 –
where it is downloadable from the “publications” link.
So Many Questions: Just the Tip of the Iceberg!
An environmental analytical chemistry perspective on EDCs
(one of my own research interests)
Tentatively
Target
identified
analytes
Identification
Detection
Identified
Artifacts
Separation
Resolved
Unresolved
Extraction
Extractables
Non-Extractables
Spectrum of chemicals (>100,000)
Graphic redrawn from
Daughton (US EPA) 2005