No, this is not a trick question. By definition, you'd think the answer is L.A., where the heat is generated, but it's actually San Bernardino, 56 miles to the east. Turns out that like ozone, heat is transported by the wind.
Sep 24, 2015   KPCC
The top court's decision on Tuesday to review the first-ever regulation of mercury is a setback for Obama's environmental agenda, in part because it has implications for other EPA initiatives including Wednesday's proposal to tighten the ozone rule.
Nov 27, 2014   The Wall Street Journal
Call it the law of unintended consequences. Alerts of "bad air days" that ask motorists in the Wasatch Front to reduce driving had the opposite effect, prompting some residents to drive away from lowlands to the mountains where air may be healthier.
Sep 12, 2013   The Salt Lake Tribune
An MIT study finds 200,000 early deaths per year in U.S. are attributed to air pollution. The biggest source is vehicle tailpipes at 53,000. Most impacted state: California; most impacted city: Baltimore.
Sep 3, 2013   MIT News
For the second time, a court has thrown out EPA efforts to address pollution from power plants in 'clean-air' states that cause pollution downwind. This time, the Cross-State Air Pollution Rule was the victim.
Aug 25, 2012   The New York Times - Environment
A new study by NOAA scientists and colleagues shows a stunning reduction in vehicle-related air pollutants in the Los Angeles basin over the past several decades. Despite the gains, unhealthy air remains.
Aug 20, 2012   NOAA
A promotion by Shell Oil and Lucky supermarkets conflicted with a regional alert to reduce driving due to an ozone alert. Motorists lined up in the morning for free gasoline at a San Francisco Shell station during a 'Spare The Air' Day on Sept. 28.
Sep 30, 2011   The San Francisco Examiner
One out of every two Latino's live in the nation's top 25 most ozone-polluted cities according to a new report. KQED's California Report interviews one of the co-authors, the Director of Latino Outreach for NRDC, in this radio report.
Sep 23, 2011   The California Report
President Obama has directed EPA Administrator Lisa Jackson to drop proposed regulations that would have reduced ozone (smog), handing a victory to Republicans and industry that had opposed them, to the dismay of the environmental community.
Sep 3, 2011   Bloomberg News
Unhealthy, smog-filled air has struck an unsuspecting locale: rural Wyoming.
Mar 12, 2011   USA Today
San Joaquin Valley's bad air will cause their air district a $29 million fine for exceeding federal ozone limits - and they plan to ask motorists to pay the bill, if the board supports the new registration fee.
Oct 20, 2010   The New York Times - Environment