Roof runoff water quality was affected by rainfall, rainfall intensity, roof material, season and air temperature.

屋面径流水质主要受降雨量、降雨强度、屋面材料、季节和气温的影响。

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The rain runoff water quality in Shanghai was monitored and the main pollution factors influencing the water environment were investigated.

通过对上海市雨水径流水质的监测，以及对其污染主要影响因素与污染程度的分析，掌握水质特性及其变化规律。

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Other environmental pressures to the reef and its ecosystem include water quality from runoff, climate change accompanied by mass coral bleaching, and cyclic outbreaks of the crown-of-thorns starfish.

其他对于大堡礁及其生态系统的环境压力来自径流的水质问题，伴随着大规模珊瑚白化的气候变化以及棘冠海星的周期性爆发现象。

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These changes are making water supply and quality more difficult to obtain, affecting runoff and soil moisture, increasing water temperatures, decreasing snowpack and lake and river ice, threatening fish and aquatic species, and allowing saltwater intrusion and sea level rise.

FORBES: Water Risk Threatens Businesses, National Security