Equipment calibration issues may have caused high benzene readings in West Torrance, pollution watchdog says
(WorldNews Health)

Equipment calibration problems caused the recent overnight spikes in West Torrance benzene levels, more monitoring has suggested, according to the region’s pollution watchdog. A new air sensor opposite West High School, which began operating late last month, had recorded unhealthy levels of the cancer-causing benzene in mid-January readings, causing concern among residents — who noticed the overnight increases on TorranceAir.org — and prompting the South Coast Air Quality Management District to investigate. But additional air...