Many popular nail polishes and other nail care products contain a "toxic trio" of chemicals, according to a California Department of Toxic Substances study released Tuesday. The study found high concentrations of 3 chemicals — tolulene, formaldehyde, and dibutyl phtlate (DBP) — in a majority of the products studied, even those products that claim to be free of them. According to the state, tolulene and DBP are developmental toxins that ......

Six of the top 10 cities with the highest percentage of Asian residents in the United States are located in the Bay Area, according to a U.S. Census report released Wednesday. Daly City has the second-highest percentage of Asians of any city in the nation. (Honolulu, Hawaii has the highest percentage.) More than 58 percent of the 101,123 people living in Daly City are of Asian descent. Fremont ranks third with ......

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Sunday Streets, San Francisco's roving neighborhood street festival, hits Chinatown and North Beach this weekend with a ping-pong tournament to honor the 40th anniversary of "Ping Pong Diplomacy." In 1971, American and Chinese players competed in China, which paved the way for President Richard Nixon’s historic visit to Beijing in 1972.  You can show off your table tennis skills at a citywide ping pong tournament starting at 9 am in Portsmouth Square. ......

Nearly two-thirds of San Francisco's Chinese voters would support interim Mayor Ed Lee if he decided to run for mayor in November, and one in four would choose him as their favorite, according to a poll by the Sing Tao Daily newspaper. After months of insisting that he had no intention of running for mayor in November, Lee, who is of Chinese descent, said Tuesday that he was considering joining the race. Voters of Chinese ......