Unsafe toxics found in five more Evandale Avenue homes
Original post made on Mar 28, 2013
In follow-up to this story, EPA tests call into question the reliability of the test results: [Web Link TCE vapor test results not verified].
Read the full story here Web Link posted Thursday, March 28, 2013, 2:37 PM
on Mar 28, 2013 at 4:54 pm
Is the outdoor air safe at Devonshire Park?
on Mar 29, 2013 at 11:20 am
Yes, the outdoor air is safe. If you want to look at the instrument itself (PTR-MS) and the inside of the van it's at:
and hit View Video at the bottom
on Mar 29, 2013 at 11:23 am
Let's remember that TCE is also present in some household cleaning products, in some adhesives and other materials used in home construction and furniture, etc., so measuring TCE in the air inside a home does not always mean that it originates from underlying groundwater. Soil vapor samples from beneath the affected homes would add an important piece of the puzzle. Results will also vary over time, so if EPA does confirmation testing and finds no detections, it only means it wasn't in the air on the day they tested. The duplicate samples taken by the firm with the new technology will be more informative.
What is the risk of this exposure compared to inhaling uncombusted gasoline compounds like benzene from car exhaust on 101 that blows south into residential neighborhoods? Very small, I think. It's good to be concerned about all exposures and control those we can, focusing on the largest first. Our attention is focused on trace TCE because someone is testing for it, but we should look at the big picture, and don't forget exposures from the food we eat.