With the improvement of quality of urban life and rapid development of economy, the catering industry is prosperous. Many restaurants into community, lampblack to exhaust gas pollution growing. Catering industry with industrial waste gas, motor vehicle exhaust soot emissions, is regarded as the three "killer" pollution of the atmosphere. Guangzhou tianhe district existing more than ten thousand large and small restaurants, lampblack nuisance into environmental complaint hot issues. In 2009, the tianhe district pollution lampblack pollution complaints are about 60% of the cases of complaint letters and visits, to reduce the lampblack nuisance problems, improve the efficiency of the environmental protection department to check, the tianhe district environmental protection bureau actively the construction of lampblack online monitoring system.