The factories have disappeared after being shut down due to pollution violations [1][2], and communities organize to shut down factories due to pollution [3].
[1] https://www.latimes.com/local/lanow/la-me-ln-exide-plant-clo... [2]https://chicago.cbslocal.com/2019/02/15/sterigenics-shut-dow...
[3]https://www.theguardian.com/us-news/2019/may/30/toxic-americ...