How Does Sewage And Wastewater Cause Water Pollution?
How Does Sewage And Wastewater Cause Water Pollution? Untreated sewage also destroys aquatic ecosystems, threatening human livelihoods, when the associated biological oxygen demand and nutrient loading deplete oxygen in the water to levels too low to sustain life. How does sewage waste affect the environment? Untreated sewage also destroys aquatic ecosystems, threatening human livelihoods, when