AI Article Synopsis
- * Methanol (MeOH) and methyl methacrylate (MMA) were identified as the main pollutants, with some emissions exceeding national safety standards, particularly in terms of odor concentration.
- * Although the health risk from these fugitive emissions was assessed as very low and not harmful to human health, recommendations were made to set stricter emission limits for MeOH, MMA, and odor concentration to enhance industrial practices and environmental protection.
Article Abstract
In the present study, the main source and characteristics of volatile organic compounds (VOCs) released from recycled waste polymethyl methacrylate (PMMA) in Zhejiang province was analyzed quantitatively and qualitatively. Based on those results, the internationally recognized evaluation model of health risk assessment was adopted in the preliminary assessment of the health risk of those VOCs. The results showed that methanol (MeOH) and methyl methacrylate (MMA) were the main pollutants. Emission from part of enterprises exceeded the national standards in MeOH and MMA, especially for fugitive emissions of odor concentration. Moreover, health risk value of fugitive emissions was very low and did not cause harm to human health. Additionally, to better accelerate industrial upgrading and environment pollution treatment, the emission limits of MeOH, MMA and odor concentration were suggested and the values of existing/new (fugitive emission) limitations were 45/30 (0.5) mg x m(-3), 30/25 (0.5) mg x m(-3), and 1000/800 (20), respectively.
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