. >>> nursing students at oakland's samuel merritt university held a health clinic for day lobbers. it's offered twice a month at the center. they are designed to help migrant workers and others get the preventative care they need to stay healthy. the volunteers focus on problems unique to day laborers. >> we pay particular attention to muscular skeletal problems because of work that they do. the workers also received tetanus shots and volunteers also asked them about their living conditions and recommending things like smoke detectorss. the-year-old program gives students practical experience in treating patient. bay area air quality officials have issued something that they have only issued one orthotime this season/a spare the air alert and it starts tonight at midnight. that mean it's illegal to burn wood outside or indoors, including in fireplaces or stoves. officials say pollution hovers in the reason when winds are lighted. air pollution is linked to asthma and other illnesses. >> i what's been marked up this morning the fog was in and i drove to work this afternoon and the f