Status and Variation of Eco-environmental Quality in Xiangyang City During the 13th Five-Year Plan Period
Based on the ecological environment monitoring data of Xiangyang City from 2016 to 2020,the status and change trend of eco-environmental quality in Xiangyang City were analyzed.The results showed that the eco-logical environment quality of Xiangyang City continued to improve during the 13th Five-Year Plan period.In 2020,Xiangyang urban area had 274 days of good air quality,and the proportion of good air quality days in-creased by 5.2 percentage points compared with 2016.Surface water environmental quality improved significantly.The Han River main stream monitoring section of the water quality was excellent.Compared with 2016,the pro-portion of Han River tributary monitoring section excellent increased by 21.3 percentage points;slightly polluted water quality decreased by 16.1 percentage points;Class V water quality section basically eliminated.During the 13th Five-Year Plan period,the pH of precipitation in the central urban area changed little and no acid rain was detected.The quality of urban centralized drinking water sources,acoustic environment,groundwater,rural envi-ronment and other environmental factors remained generally stable.However,the problems of fine particulate matter and ozone pollution were prominent;the water quality of some surface water sections cannot reach the standard statically;the water quality of drinking water sources in towns and villages was not all up to the standard,and the road traffic noise exceeds the standard at night,which brought challenges to the improvement of ecologi-cal environment quality during the 14th Five-Year Plan period of Xiangyang City.
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