Perc in your dry cleaned sweater?
Perchloroethylene (also called tetrachloroethylene, PCE or PERC) is a common dry cleaning solvent. It is also used in textile processing and degreasing. Exposure to this chemical is associated with a host of adverse effects. So we were struck by a recent study that shows PERC residues buildi…
View the post titled Perc in your dry cleaned sweater?Lead: Another reason to worry about car races
Exposure to lead from competition vehicle emissions is a health concern for people who live near and/or attend races.
View the post titled Lead: Another reason to worry about car racesWhat will the new TCE health classification mean?
Now that the US EPA has classified TCE as a carcinogen, and dangerous at levels previously believed to be safe, what will happen to risk assessments and other regulatory decision-making in Ontario? Noted risk assessor, Brett Ibbotson, tells me that the new numbers are two to four times as st…
View the post titled What will the new TCE health classification mean?Consumer products banned for lead- in the US
The US is far more active than Canada in detecting lead in consumer products, and in requiring that they be withdrawn from the market. The Centers for Disease Control post a fascinating list of high lead consumer products, many of them marketed for children, which can no longer be sold in th…
View the post titled Consumer products banned for lead- in the USClimate change and heatstroke
Just as Natural Resources Canada predicted, climate change (from greenhouse gas emissions, mostly from burning fossil fuels) is bringing us immense human, environmental and economic damage from heat waves, drought and wildfires. I have already had a person become ill this week with heatstrok…
View the post titled Climate change and heatstrokeUpdated air pollution standards
Ontario’s air standards and ambient air quality criteria (AAQC) have been updated for a series of carcinogens and other toxic substances, including 1,3-Butadiene. EBR Registry Number: 010-6214 Manganese and Manganese Compounds: EBR Registry Number: 010-6253 Hexavalent Chromium, and Ch…
View the post titled Updated air pollution standardsWeather or climate?
It’s hard to know whether individual weather events are just random fluctuations, or whether they are growing signs of climate change. What we need to look for are patterns– is the weather changing? And how do the changes that are actually happening compare to those predicted for clima…
View the post titled Weather or climate?Receive Blog Posts
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