I'm an environmental engineer (air quality). I once did an audit of four wastewater treatment plants in one day. This was one of the worst days of my life. I skipped my last couple of hours of work so that I could go home and shower, and I could smell the stench coming out of my hair in the shower. The worst room was about 98% humid, I don't remember which step it was (part of the secondary phase), but nasty nasty nasty.
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I can't read your signature. Sorry.
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