Ashok Gadgil Interview. November 11, 2003.
Wednesday, August 9th, 2006Audio Options:
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What happened in northeastern India in the summer of ‘92 and how did it affect the direction you took with your career?
There was an outbreak of a mutant strain of cholera in Bengal, which became known as “Bengal cholera.” Because the surface protein on this mutant strain was slightly different than what’s common, all the cholera vaccines were ineffective in protecting populations from this particular strain. So thousands of people contracted cholera within weeks. In one month alone, as the epidemic spread, some 10,000 people died from this cholera epidemic, in a single state in India. Soon after, this particular strain spread from India to Bangladesh and also turned up in Thailand. That’s when I decided to do something about it. I had to do something about it because I had been thinking about ultraviolet (UV) disinfection for quite some time as a potential way to disinfect drinking water inexpensively for poor communities in poor countries.
What is the scale of the global drinking water problem right now?
About two billion people, roughly one third of the global population, need to go outside their home to fetch water for daily use. Of those, 1.2 billion people don’t have access to safe drinking water; they are forced to rely on biologically contaminated water, in most cases. This leads to a large number of diseases and death, particularly for children below age five. Young children have low resistance to dehydration, which is the resultant condition of diarrheal diseases.
With all the advances in public health, technology and medicine today, why is it that still 20% of our world’s population is without access to safe drinking water?
Right, it is 20% if you exclude the residents of large metropolitan areas like Jakarta, Bombay, Cairo, and Mexico City; if you include them, then the number rises to about 30%. We already have the science and technology to address this problem. It is not anymore a scientifically inaccessible domain, intellectually. It’s something that we can do. It just hasn’t been done, for a variety of reasons, including inadequate investment in water infrastructure. There is also the mindset that in the developing countries we’ll just follow the model of what’s been done in the industrial countries, which is to pipe pressurized safe water 24-7 to everybody - and that requires a level of investment and a level of water availability that’s often just not supportable. There is also the problem of governance. In many developing countries, the political will to provide safe drinking water dissipates as soon as the politically most vocal and powerful segments of society have access to safe drinking water. Sadly, those who are relatively voiceless and politically weak are left to fend for themselves. (more…)








