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They dumped their sewage and garbage into Lake Michigan.
One gallon
waste being dumped, oil spills, sewage pumped into it..... :)
all the peices of s h i t has been just dumped in the sewage....
waste materials are dumped in the rivers thus leading to slower flow of water the garbage of any type of material blocks the path of river the water stays there resulting sewage
Waste materials are dumped in the rivers thus leading to slower flow of water the garbage of any type of material blocks the path of river the water stays there resulting sewage
By late 1950's Thames was biologically dead. It had so many factories waste and sewage waste dumped into it. It had so many litter dumped into it. It was black in colour and it smelled strongly.
There are usually two kinds of drain, sewage and stormwater. Sewage runs from your toilet to a treatment plant that usually removes solids and cleans the water well enough to be put back into rivers and waterways, and eventually, the ocean. Stormwater takes the water runoff from rooftops and streets and runs it into waterways without any purifying or cleaning. There may be some rough grills and gratings to capture floating debris like plastic bottles. In some areas without sewer pipes septic tanks are used to collect sewage. These tanks are regularly pumped out and the sewage is taken to a treatment plant.
Bacterial
The Roman Empire built large systems of waterworks to both supply water and remove sewage from their cities, unfortunately Roman sewers usually just emptied into the nearest river polluting it. It was not until the middle to late 1800s that Europe again created similar systems for handling sewage and not until the early 1900s that the addition of sewage treatment plants became common to minimize the pollution of the rivers the sewage was being dumped into.
The most common type of ocean pollution is garbage or sewage. They are readily dumped into the ocean by ships and countries located along the ocean.
Sand, broken down crustacean's, calcium from animal bones, salt deposits, small quantities of waste materials from sewage and industry