"කොළඹ මල් වවපු ජනාධිපති සිංහරාජෙත් මල් පාත්තියක් කරලයි නවත්තන්නේ"
- සමන්ත විද්යාරත්න-
- සමන්ත විද්යාරත්න-
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මෙන්න ඔක්සිජන් කන්නද අහපු අයට හොඳ නිව්ස් ඵකක්..
- Thread starter YelaWolf
- Start date
oya news eka hiru, derana news wala giyanam ubata sadaranawa okata tharkayak hadagena enna thinbuna anduwa puka pennai kiyala
ubalata mona oxygen da. Co2 tikka kala idapan.
What is the air quality index of Colombo?
Colombo is the largest city on the west coast of the island of Sri Lanka and acts as its commercial capital city. In 2011, the population stood at 5,648,000 people. At the end of 2020, according to figures released by the reputable Swiss company IQAir.com, the quality of air In Colombo was “Good” with a figure of 13 US AQI. The concentration of the main pollutant PM2.5 was 3 µg/m³. These numbers follow the guidelines as suggested by the World Health Organisation (WHO). With such relatively low numbers, there is no reason why the doors and windows can be opened to bring clean, fresh air indoors, or outdoor activities could be enjoyed.Is the air quality in Colombo getting better or worse?
According to data recently obtained, air pollution has increased in most parts of the country except in the south, including Colombo, Kandy, Puttalam, Vavuniya and Jaffna.As the impact of COVID 19 increased in Sri Lanka, various restrictions were imposed there. As a result, environmentalists say the current rise in air pollution is a cause for concern, although the rate of air pollution should have been reduced as traffic has decreased.
The report said that air pollution within the country may have increased due to the prevailing windy weather in the areas surrounding Sri Lanka. According to the Air Visual website, the increase in air pollution is due to the entry of polluted air over the Indian subcontinent into the Sri Lankan atmosphere. The change in air patterns has moved the polluted air from over the Indian subcontinent to Sri Lanka.
Our atmosphere is essential to support life of all types. It contains 78.09 per cent nitrogen, 20.95 per cent oxygen, 0.93 per cent argon, carbon dioxide and small quantities of some other gases. The most essential being oxygen as it is vital to existence. Contaminants such as inorganic and organic chemicals in the atmosphere come and mix in solid, liquid, and gaseous states.
What can be done to improve Colombo’s air quality?
The expansion of the public transport network and the active encouragement of its use are needed to reduce the number of private cars on the streets of the capital. It is a proven fact that when mobile air monitoring stations are set up near busy road junctions, the figures they produce are evidence alone as to where the polluted air comes from. In hotter countries, drivers are loathed to turn off their engines whilst queuing as it also turns off the air conditioning system and the interior soon heats up. Modern motorbikes turn off their engine automatically if forward movement is no longer detected.Exhaust emissions can be checked periodically and adjusted if necessary. Proper maintenance of the vehicle will avoid damage. During vehicle production, the government may assist in the modification of engine parts to reduce the amount of carbon dioxide given off into the air. Travelling on public transport as much as possible will greatly reduce fuel shortages, cleanliness and road congestion.
Factories should have filters and cleaning systems fitted by law. When that is not the case, opposition groups should be formed to petition the government to make them comply. The government should take serious action against harmful factories. The Air Safety and Pollution Control Act provides for action to be taken against companies that cause pollution.
The planting of trees which naturally convert carbon dioxide into oxygen should be undertaken throughout cities, where possible. Cutting down trees for urban development increases toxic gases in the atmosphere, causing air pollution, including noise. Trees can help reduce noise and also block some of the prevailing winds.
https://www.iqair.com/sri-lanka/western/colombo
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I agree.. we can safely cut down trees in other areas and preserve the trees in urban areas ...
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