Here's some data from the federal EPA (what they're measuring and where and what the numbers are),
https://response.epa.gov/site/site_profile.aspx?site_id=1593... ("East Palestine Train Derailment")
https://response.epa.gov/site/site_profile.aspx?site_id=1593... ("East Palestine Train Derailment")
Lost in the profoundly unhelpful debate between "no one has heard of this" and "well I have" are the actual conditions in the community and whether the concentrations of either the initially released compound or the byproducts of the "controlled burn" are high enough to cause effects in humans. From the EPA link:
> Feb. 13, 2023 Update
Re-Entry air screenings are underway. Community air monitoring will continue operating 24 hours a day. As of yesterday evening, 291 homes have been screened. To date, no detections of vinyl chloride or hydrogen chloride were identified for the completed screened homes. There are 181 homes that remain to be screened.
Good news, to be sure, though this is only the very beginning of the process.
https://response.epa.gov/sites/15933/files/East%20Palestine%...
Why is almost every number in sample column #2 and #3 exactly 100 times greater than in column #1? Aren't they all [μg/L]?
There's a section on page 3 ("petroleum products") that's labelled as being both μg/L and mg/L.