Air regulators say all Bay Area refineries are failing to properly monitor their emissions

The Bay Area Air Quality Management District has rejected fence line air monitoring plans for all five Bay Area refineries, saying the plans don’t meet the requirements of its refining emissions tracking rule.

The district said Monday that its rule requires Bay Area refineries to operate fence line air monitoring systems that measure specific pollutants crossing their property lines. Refineries are required to monitor, record and publicly report concentration levels of multiple compounds, including hydrogen sulfide.