[Retracted] Urban Management in the Dynamic Relationship between the Occurrence of Environmental Pollution Accidents and Economic Development in China

Table 3

Emissions of major pollutants in wastewater in 2016.

Area	Chemical oxygen demand (million tons)	Ammonia nitrogen (million tons)	Total nitrogen (million tons)	Total phosphorus (million tons)	Petroleum (ton)	Volatile phenols (tons)	Lead (kg)	Mercury (kg)	Cadmium (kg)	Arsenic (kg)
National	1046.53	141.78	212.11	13.94	8838.7	381.2	52930.5	613	11219.4	41946.7
Eastern region	417.75	63.45	98.66	6.25	3207.1	81	7257.6	167.6	844.2	1783.6
Central region	333.86	43.05	63.28	3.95	3028.8	265.5	27759.4	308.7	7003.4	22813.8
Western region	294.93	35.28	50.2	3.74	2602.5	34.7	17913.5	136.6	3371.8	17349.5
Proportion in the eastern region (%)	39.92	44.75	46.51	44.84	36.28	21.25	13.71	27.34	7.52	4.25
Proportion in the central region (%)	31.90	30.36	29.83	28.34	34.27	69.65	52.44	50.36	62.42	54.39
Proportion in the western region (%)	28.18	24.88	23.67	26.83	29.44	9.10	33.84	22.28	30.05	41.36