How to make our neighborhoods and cities less air polluted and livable?

There are four immediate causes of air pollution in the cities:

1.      Industrial emissions
2.     Vehicular emissions
3.     Dust
4.     Litter/garbage

Industrial emissions are the result of manufacturing industries such as cement and brick factories. At the moment, industrial emissions are important but not the major air pollutants in Nepal--thanks to the poor state of industrialization.

Vehicular emissions are the number one source of air pollution in Kathmandu and Nepal in general. Blame the old and poorly maintained vehicles coupled with poor and congested roads, bad traffic, and poor fuel quality. On top of this, lack of effective emission control creates a perfect environment for the diesel and petrol guzzlers to exhaust the fumes that’s no good to the people and the environment.

Dust is probably the second biggest air pollutant in Nepal. The unique mixture of vehicular emissions and dust is the reason why you, your clothes and your shoe look so different when you get home even after a brief walk in Kathmandu.

The unmanaged garbage or litter also contributes to air pollution, but it is not as big of a culprit compared to the other three mentioned above. More than the air, littering negatively affects drinking water sources.  

Because vehicular emissions and dust are the major causes of air pollution in Nepal, below I present few good practice examples from the U.S. that can be helpful in addressing the problem.

• Vehicle emission test: US started to test vehicle emissions in 1960s with growing air pollution in major cities. Established through the US Clean Air Act 1970 and several amendments thereafter, the law and the system have matured over time and they are strictly enforced now. It is required to be done in every two years, and a vehicle must pass various criteria established by the Act. The testing procedure, which uses a computerized system, is so efficient that it only takes about 10-15 minutes to complete the test.
• Cover up the ground dirt: Nearly every street, road, sidewalk, driveway, runway, parking lot are paved with concrete, asphalt or bricks. Open area in the parks, roadsides, backyard or front yard of a house are generally covered with grass (Picture- grass carpets being placed on the roadsides). 
  
  Similarly, the bases of the trees and the gardens are covered with something called mulch—made with wooden pallets. The mulch helps keep the moisture while covering the soil. Because the soil is covered nearly everywhere, especially in areas where human footprints are high, the soil dust cannot take off the ground.  And if there is a significant amount of mud or open soil in the residential area for whatever reasons, authorities take no time to clean up. 
• Anti-littering law and social norm: Littering in public place is illegal in all 50 states in the U.S. One could be fined and/or asked to serve anti-pollution community activities for illegal littering. Moreover, it is something that is socially unacceptable. These legal and social norms are well complemented by the towns and municipalities by abundantly placing the trashcans in every nooks and corners of the cities. The cleaning authorities regularly pick up trashes, and no, there are no strikes or bandh here!

While it may not be possible to adopt all these practices as-they-are in Nepal overnight, authorities there can learn a lot from these examples as they continue to work in making the cities livable.

Mission Cleanliness: Sharing Few Good Practices

Cleanliness is not only a public health matter; it’s a reflection of a civilized society.  How a community or a country becomes clean is a complex and usually a lengthy phenomenon. It requires a combined intervention of public health policies and change in social or cultural behaviors- both are often mutually inclusive.

Most of the developed countries were plagued with diseases, war and poverty before they were able to realize the importance of personal hygiene, sanitation and cleanliness. With such realization came changed individual behavior, social norms, and public policies, all of which contributed to build clean and healthy societies in those countries. This is not to say that all communities, cities and villages of the developed countries are clean, as it depends on various factors; but on average they are clean.

Developing countries these days don’t have to go through such undesirable events like diseases and war calamities to adopt clean practices. They have an easy access to a zillion of low cost or no cost good practice examples from around the world both in policy design and enforcement, and social behavior and normative change that can be easily adapted into local context. All it is needed is a collective passion for change and a vision, and political willingness. There are several good practices to follow even in complicated aspects like political willingness. Indian Prime minister Narendra Modi’s Clean India Campaign is just one recent example.

In this blog, I have captured few pictures of my current hometown in USA to exemplify a couple of good practices that I believe are helping to make my community look clean. The first picture shows few metal signboards stuck in the ground. These signboards are to advertise new houses that are on sale in the area, and they can be easily pulled off from the ground when they are not needed. They haven’t created visual pollution, and the materials used can be recycled.

The second picture shows a few workers hired by our Homeowner’s Association to help clean the community we live in. A Homeowners Association is a community body established to monitor and enforce the rules created by the association. It maintains the economic and social value of the community. As apparent in the pictures, the workers are using simple technology—the portable air blowers-- to clean the dead leaves off the ground alongside the street. These air-blowers clean dust, dead leaves and other light trashes off the ground without having the workers use labor-intensive tools such as brooms.

Practices and technologies like these can be easily adapted in developing countries. I said adapted, not replicated, because we know that most developing societies are constrained in basic fundamentals of development such as electricity, water etc. So instead of conventional energy, solar-energy-fueled air-blower can be developed. Instead of perfectly shaped and painted metal signboards, hand-painted signboards can be used in an organized fashion. The point is that simple ideas like these can greatly help reduce and manage unnecessary trash, and help maintain the aesthetic view of the communities. By aesthetic, I didn’t mean to treat this topic as something that’s not as critical for wellbeing. To me, it is a development vision that I see on things, which in this case is my neighborhood. I truly believe that everyone deserves to live in a reality of such a vision.