Air Pollution
Rural vs Urban
The other day, I left the city for my cradle-land. The rains are yet to fall, it’s quite dry and dusty. That place however, has this soothing effect on me…. words simply cannot be used to express it! Have a look at my last post, that touched on Unpredictable Weather Pattern
The Clean Air Fix
A very striking difference between urban and rural areas is the difference in the quality of the air between the two places. The air is cleaner and fresher out in the rural areas. Since we all need to breathe, it is worth thinking about air pollution. Consider the following:
I have always believed, and many of us still do, that the air out there in rural areas is far much cleaner than in the cities. This is true to an extent. But then, rural air polllution is real. And its effect and impact gets more significant with population growth and enhanced human activity.
‘Natural’ and Organic Air Pollution
Reading some reports on air pollution, I now have a better understanding of the surprising fact that air pollution is also prevalent in rural areas. A report by Amelia Mutere, the Assistant Science Editor, International Centre of Insect Physiology (ICIPE) in Nairobi, explains that air pollution is not just a problem in developed countries and urban areas.
She writes:
The smoke from burning biomass is the most ancient and ubiquitious form of air pollution. As people are so familiar with such smoke it is often assumed to be benign… Nevertheless, these biomass fuels yield high emissions of a number of pollutants. The most dangerous emissions actually occur during incomplete combustion of carbonaceous materials which releases a wide range of organic materials of entirely different character from those in the fuel itself. Seven combustion related categories of air pollutants had received the most attention: suspended particulates (SP), carbon monoxide (CO), hydrocarbons (HC’s) and other organic emissions such as nitrogen oxides (NOX), sulphuroxides (SOX), ozone (O3) and lead (Pb).
All of these pollutants can be found along with CO2 in biomass smoke, but the relative amounts differ from those found in fossil fuel smoke. Many of the hydrocarbons in biomass smoke have been identified as being mutagenic compounds and some are carcinogenic. One polycyclic aromatic hydrocarbon of particular interest, benzo(a)pyrene, is the most studied of all the carcinogenic chemicals. Emissions, concentrations, exposures and doses are important in determining the health effects of biomass smoke.
natural-and-manufactured-air-pollution
Clean air is a public good; Indeed no other resource exhibits the same degree of ‘publicness’; Land can be parceled and fenced; Water can be bottled; Scenery can be hidden; One can even isolate himself from noise; But man has no choice but to breathe the air around him – polluted or not.




 Amelia goes ahead to identifyfive major categories of ill health expected from high exposures to biomass combustion products:
  1. Chronic obstructive lung disease (COLD)
  2. Heart disease, particularly cor-pulmonal caused by pulmonary damage
  3. Acute respiratory infections (ARI) particularly in children due to degradation of the respiratory de fence mechanisms.
  4. Low birth weight due to maternal exposures and associated with a range of perinatal and infant ill-health.
  5. Eye disorders, conjunctivitis, blindness.
Read the entire Domestic air pollution in rural Kenya by Amelia Mutere article here.
The problem of Smoke and Health in Kenya has further been explored at the Practical Action web site.
The Way Ahead
One way of alleviating this air pollution in the rural areas is to introduce ’smokeless’ stoves or better yet, by use of special smoke hoods which according to Practical Action, are simple, cost effective and efficient. Apparently, the hood is already helping to save lives.
Special smoke hood
All in all, we each can do something to help reduce this highly ignored type of pollution.
Let us all learn, share and effect change.