The idea that water is fit to drink or drinkable is not one that most of us routinely think about. The only types of water we distinguish are tap, spring, mineral, flavoured, or carbonated. The only time we may have had to distinguish between potable and non-potable water is on a camping trip or some other outdoor adventure. But the sad fact is that most of the people on this planet do not have access to water that is fit to drink. That begs the question: what do they drink then? The obvious answer is they drink whatever water they can get their hands on.
According to a report by the Leadership for Environment and Development, by the year 2025, 52 nations comprising half the world's population, will have a severe shortage of potable water. In the next 25 years, some 3 billion people will be facing water shortages.
In Pakistan, the vast majority of the country's 135 million inhabitants do not have access to drinkable water. Pakistan's attempt to raise the living standards of its citizens has meant that economic development has largely taken precedence over environmental issues. Unchecked use of hazardous chemicals, vehicle emissions, and industrial activity has contributed to a number of environmental and health hazards, chief among them being water pollution. Much of the country suffers from a lack of potable water due to industrial waste and agricultural runoff that contaminates drinking water supplies.
Poverty and high population growth have aggravated, and to a certain extent, caused, these environmental problems. This means that most people are forced to use unclean water not only for all their sanitation needs, farming, and livestock but for drinking as well.
For much of the population, often there is only one water source. It may be a nearby river or pond, maybe rain water from a catch basin or a creek. Typically, the water source is used by both humans and animals. People use it for bathing, washing up, doing laundry, collecting for cooking, and drinking. Needless to say, the water is anything but clean.
Drinking water that is unsafe can, and usually does, lead to all sorts of health-related problems such as dysentery which is severe, prolonged diarrhea with bloody stools, fever, and weakness; cholera and typhoid; flukes -- stagnant, polluted water, especially in tropical areas, often contains blood flukes. If you swallow flukes, they will bore into the bloodstream, live as parasites, and cause disease; and leeches. If you swallow a leech, it can hook onto the throat passage or inside the nose. It will suck blood, create a wound, and move to another area. Each bleeding wound may become infected.
Pakistan is currently in the midst of what some are saying is the worst water crisis the country has ever seen. The drought affecting the region threatens agricultural output, and levels in the country's reservoirs are dangerously low.
The lack of water is taking on political overtones with parties organizing protests over the issue. One-day strikes have been called in Karachi to protest water shortages in the province of Sindh. The protests have been met with harsh responses from local authorities.
While drought and pollution play a significant role in the lack of safe drinking water, some critics maintain that a large part of the problem is a result of poor management. By some estimates, as much as 60% of Pakistan's fresh water is allowed to go wasted, flowing back into the sea. Only 40% of the water is used.
It is imperative that Pakistan seeks out new and cheaper ways to provide safe drinking water for its people. Some experts have looked at inexpensive desalination techniques, ones that could be employed on a mass scale. To be sure, this precious commodity, the very lifeblood of humans, is getting scarcer and scarcer everyday.