Flame retardant pollution and economic coordinated development based on risk assessment and PCA-MLR method

This study proposes a pollution and health risk assessment method based on risk assessment and principal component analysis multiple linear regression for flame retardant pollution in economically developed areas. This method uses hazard index and carcinogenic risk to assess its health impact and extracts the main influencing components using principal component analysis. Experiments have shown that the content of flame retardants in soil has gradually increased along the river flow direction, with values of 189 ng/g, 122 ng/g, and 48 ng/g in urban, suburban, and rural areas, respectively. Decabromodiphenyl ether had the highest contribution rate to the flame retardant content in soil, with an average of 82.5%, which was 73.3% and 76.3% higher than pentabromodiphenyl ether and octabromodiphenyl ether. Therefore, this study can effectively evaluate the pollution situation of flame retardants in soil and promote the coordinated development of pollution control and social economy.