2 History of Water Pollution
Ancient Times: Water forms like rivers, lakes and streams were in the ancient times
the source of drinking water. However, human waste was deposited in the same
water bodies. Therefore, in rivers became so polluted that in order to obtain clean
drinking water, these ancient cultures needed to build aqueducts [4]. The main
cause for polluted water was that its way to rivers and streams that were originate
by human waste.
Medieval Times—1800s: During this time, people were unaware of what was good
for them and what was bad. Mercury was frequently dumped into water and was
allowable to run freely into lakes and streams from most of the humans and farm
waste. Most people living in metropolises just dumped their waste and garbage onto
the street that smelled very bad, probably.
Civilization made many great strides during the latter half of this period, frequently
to the damage of the ecosystem. Individuals even consumed chemicals at that time
Fig. 1 Flow chart representing different studies on the water contamination at different sites
Water Pollutants: Origin and Status
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