New numbers from UC San Diego’s Airborne Institute are showing a grim reality for people in the South Bay as hydrogen sulfide readings climb to dangerous levels.
Some recent readings came in at 150 times the state’s safety standards. The state’s limit is 30 parts per billion. The last time the university recorded measurements this high was in September 2024.
“Once they got there, they quickly spiked,” San Diego State Environmental Professor Dr. Paula Granados said back in 2024. “They were in the range of nine to 12 parts per million of hydrogen sulfide on all of these. And so at those levels, this is whenever you start to see dangerous health conditions.”…