A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
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In the absence of a flair system on lemmy yet, let’s try to make it easier to scan through posts by type in here by using tags:
The OSHA permissible exposure limit (PEL) for benzene is 1 part per million (ppm) as an 8-hour time-weighted average (TWA), with a short-term exposure limit (STEL) of 5 ppm for any 15-minute period.
The benzene content limit in gasoline in the United States is set at 0.62% by volume, with a maximum average standard of 1.3% that took effect in 2012.
By mass or volume?
