This doesn't look like an accident, or fireworks.
**This doesn't look like an accident, or fireworks.**
https://twitter.com/i/status/1290671396222382081
CHEMICAL AND PHYSICAL FACTORS THAT INFLUENCE NOx PRODUCTIONDURING BLASTING - EXPLORATORY STUDY
https://www.cdc.gov/niosh/mining/UserFiles/works/pdfs/capft.pdf
**CHEMICAL AND PHYSICAL FACTORS THAT INFLUENCE NOx PRODUCTIONDURING BLASTING - EXPLORATORY STUDY**
https://www.cdc.gov/niosh/mining/UserFiles/works/pdfs/capft.pdf
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