Environmental Kunzites Curve is used to study three industrial wastes of Shanghai

Metroeconomics models are used to analyze the data of three wastes of Shanghai from 1982 to 2005,the results indicate that an inverted U shape curve exists between per capita industrial waste gas and per capita industrial solid wastes of Shanghai but an U shape curve exists in per capita wastewater,and that per capita industrial waste gas and per capita solid wastes of Shanghai have surpassed the turning point of Environmental Kunzites Curve but per capita industrial wastewater is below the turning point of Environmental Kunzites Curve.