Listener Jenny Wread has noticed the Bay Area's smog on her commute. And she's hearing more Spare the Air alerts. How is the air quality doing in the Bay Area as the population grows? Reported by Matt Beagle. Produced and edited by Olivia Allen-Price, Vinnee Tong, Paul Lancour and Julia McEvoy. Theme music by Pat Mesiti-Miller. Ask us a question at BayCurious.org. Follow Olivia Allen-Price on Twitter @oallenprice.

Why Does San Jose Have So Many Urban Islands?

Bay Curious is a show about your questions – and the adventures you find when you go looking for the answers. Join host Olivia Allen-Price to explore all aspects of the San Francisco Bay Area – from the debate over "Frisco", to the dinosaurs that once roamed California, to the causes of homelessness. Whether you lived here your whole life, or just arrived, Bay Curious will deepen your understanding of this place you call home.