The effects of urbanization on household wastewater emissions in China: Efficient- and inefficient- emissions
2020
Sheng, Pengfei | Zhai, Mengxin | Zhang, Yuechi | Kamal, Muhammad Abdul
While considerable efforts have been made to address the relationship between urbanization and environmental issues, few of them focus on household emissions. Thus, this work aimed at evaluating the effect of urbanization on household wastewater emissions, and made a distinction between the efficient- and the inefficient-emissions. We compiled a China’s provincial dataset over the period 2005–2017, and estimates indicated that a 1% rise in the urbanization was correlated with a 0.581 increase of efficient emissions, while inefficient emissions decreased by 7.606. As of 2017, the sample period end year, the inefficient emissions accounted for 10.5% of the total emissions of China as a whole, which was relatively large and could not be overlooked. Meanwhile, a back-of-the-envelope estimate revealed that urbanization had a negative impact on China’s total emissions, with a marginal effect ranging from −0.226 to −1.354 over the sample period. The above findings, however, did not imply that urbanization would spontaneously reduce the inefficient- and total-emissions. Thus, the government in the process of urbanization should strengthen environmental education, municipal facilities, and others.
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