[Pollution Characteristics and Emission Coefficient of Volatile Organic Compounds from Auto/motorcycle Parts & Accessories Manufacturing in Zhejiang Province].

The status of volatile organic compound (VOC) treatment in auto/motorcycle parts & accessories manufacturing in Zhejiang province was analyzed based on data from a survey investigating 70 concerned enterprises conducted in 2015. The pollution characteristics were further explored and the emission coefficient of VOCs released from this industry was preliminarily calculated by analyzing the survey data of 56 of the typical enterprises that had been screened further. The results showed that about two thirds of the enterprises had been equipped with collection and treatment facilities, but most of those facilities were running abnormally. Solvent-based materials were used commonly in this industry, and the main VOCs pollutants were xylene, butyl acetate, cyclohexanone, acetic ether, and toluene. The VOCs emission coefficient of auto/motorcycle parts & accessories manufacturing in Zhejiang was 414 g·(thousand yuan), whereas the emission coefficient of the enterprises producing parts & accessories for only auto was 294 g·(thousand yuan). As for the the enterprises producing parts & accessories for only motorcycle and for both auto and motorcycle, the emission coefficient reached 715 g·(thousand yuan).