respirator

The researchers wore respirators while working near the river.

One category of threatened regulations applies to standards for respirators and filters to screen out workplace pollutants including asbestos, arsenic and lead.

The research team, which included scientists from UC San Diego and Scripps Institution of Oceanography, wore respirators and protective gear while collecting samples near the Tijuana River.

Cleanup crews in white hazmat suits and respirators typically needed up to three days to scrape away the material and remove it in sealed containers.

“Are we supposed to scrub the asbestos out by ourselves wearing hazmat suits and respirators?” said Davis, a 35-year policyholder.