Jakarta, CNBC Indonesia – The Jakarta area and its surroundings were showered with moderate intensity rain on Sunday (27/8/2023) evening. The rain is the result of weather modification by the BMKG to reduce air pollution.
The question is, is it true that artificial rain is effective in overcoming this problem?
In general, rain is often thought to have the ability to remove smoke and reduce air pollution. However, quoting the official Nafas Indonesia website, a number of studies show that the effect of rain in reducing air pollution is relatively small.
One study found that airborne pollutants were reduced by up to 30% after heavy rainfall. However, another study conducted in China found that minor pollutants were reduced by only 8.7%. This happens because rain tends to only be able to wash away particles with a greater concentration and size.
Another study conducted by researchers from The Massachusetts Institute of Technology found that the smaller the raindrop, the more likely it is to attract a particle in the air.
In essence, the use of artificial rain can only be a short-term solution to reduce pollution in the capital. Bigger steps are needed to ensure that the people of Jakarta and its surroundings can breathe clean, pollution-free air.
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