Visibility Current Affairs, GK & News

Nights are getting brighter : The light pollution

   As we have begun working in night too, excess light is dumped into the environments at nights. This is endangering ecosystems and harming animals. This is because their life cycles depend on dark. We are endangering ourselves by altering the biochemical rhythms. The International Dark Sky association defines light pollution as the excessive use ..

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State of Global Air 2019 report released by Boston-based Health Effects Institute

The State of the Global Air 2019 report has recently released by the Boston-based Health Effects Institute (HEI). The report revealed that 1.2 million Indians lost their lives due to exposure to unsafe air in 2017. Now, in India, air pollution is the third-highest cause of death among all health risks, ranking just above smoking. ..

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Flights grounded in Edmonton due to dense fog

Very dense fogs caused delays at Edmonton international airport on Saturday morning. The visibility was reduced to 1/8 of a mile (0.2 km) for hours together. The service began shortly at noon after the sun rose. However, the dense fog is to persist for a few more days. SCientists say that a layer of warm ..

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Aerosols

Aerosols are tiny particles formed both naturally and anthropogenically; naturally formed aerosols are dust whipped by wind, sea salt, sulphate compounds arise by natural processes and plants release organic materials into the air and aerosols formed by anthropogenic activities are soot, sulphates from the burning of fossil fuel, fly ash from thermal plants & nitrates ..

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Black Carbon

Black Carbon is formed as a by-product of incomplete combustion of fossil fuels, bio-fuels and biomass. It is the strongest absorbent of light amongst all the components of particulate matter. Main Properties of Black Carbon It is directly emitted in the atmosphere as fine particles PM5. It is highly effective in absorbing solar energy and ..

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