Wildfires like those in Los Angeles that destroy urban structures release toxic chemicals, including lead, into the air.

Not far from where Ceci Carroll lives, a rock-mining company has polluted the air with dust across the San Gabriel Valley, she said. Now, as crews clean charred remains from the Los Angeles wildfires, ...

Other potential microplastics sources our experts brought up are fabrics that touch your skin often (clothing, bedding, ...