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How can artificial rain help combat smog?

12:23 PM | 24 Nov, 2023
How can artificial rain help combat smog?

LAHORE – Following the worsening pollution conditions, Lahore’s air quality index has risen above 300, and the Meteorological Department reports that there is very little chances of rain until mid-December. 

The Punjab government has also established an expert group to plan for artificial rain on November 28 and 29 in order to curb the smog in the city.

Dr Manoor Sabre, head of the Punjab University Institute of Geography and a member of the technical committee, claimed that artificial rain was just salt put on top of clouds that were already there. It will cost Rs40 million to create one downpour.

Dr Sabre went on to say that since pollution is a year-round problem in the city, artificial rain is necessary and would not have an impact on the climate system.

The idea of artificial rainfall was first tried at Khanpur three years ago by Dr Sabre. 

How does man-made rainfall work?

The procedure of creating artificial precipitation, which involves first chemically enriching the clouds and then using specialised planes to drop sodium chloride from a height of two to four thousand feet above the clouds, is also fascinating. 

Spraying silver iodide and other chemicals causes ice crystals to grow in the clouds, which then intensify and produce rain.

In addition to the potential for extreme heat and humidity, the chemicals in the rainfall may be hazardous to human health. 

In Tanzania, silver iodide is the most deadly substance used in artificial rainmaking, while other compounds such as carbon dioxide, calcium chloride, potassium chloride, sodium hydroxide, aluminium oxide, and zinc are also utilised. 

Dr. Victoria Ngumo, a specialist in water and human health, claims that artificial rain is a major cause of several illnesses, including cancer, AIDS, and malaria. 

Research from the University of California claims that water-insoluble silver iodide is a hazardous material that contaminates water. Studies have indicated that this substance is hazardous to fish, people, and other living things. 

Chemicals can enter the body from the mouth, skin, or breath. Small doses might result in renal and lung problems as well as stomach issues.

Daily Pakistan Global Web Desk

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Pakistani rupee exchange rate against US dollar, Euro, Pound and Riyal - 29 Feb 2024

Pakistani rupee remains stable against US dollar in the open market on February 29, 2024 (Thursday).

US Dollar rate in Pakistan

In the open market, the US dollar was being quoted at 279.1 for buying and 282.35 for selling.

Euro currently stands at 303 for buying and 306 for selling while British Pound rate stands at 352 for buying, and 355.5 for selling.

UAE Dirham AED hovers at 76 whereas the Saudi Riyal saw slight increase, with new rates at 74.3.

Today’s currency exchange rates in Pakistan - 29 Feb 2024

Source: Forex Association of Pakistan. (last update 09:00 AM)
Currency Symbol Buying Selling
US Dollar USD 279.1 282.35
Euro EUR 303 306
UK Pound Sterling GBP 352 355.5
U.A.E Dirham AED 76 76.7
Saudi Riyal SAR 74.3 75.1
Australian Dollar AUD 181 183
Bahrain Dinar BHD 743.11 751.11
Canadian Dollar CAD 207 209.2
China Yuan CNY 38.82 39.22
Danish Krone DKK 40.69 41.09
Hong Kong Dollar HKD 35.7 36.05
Indian Rupee INR 3.37 3.48
Japanese Yen JPY 2.1 2.18
Kuwaiti Dinar KWD 907.32 916.32
Malaysian Ringgit MYR 58.49 59.09
New Zealand Dollar NZD 173.05 175.05
Norwegians Krone NOK 26.36 26.66
Omani Riyal OMR 725.68 733.68
Qatari Riyal QAR 76.74 77.44
Singapore Dollar SGD 207 209
Swedish Korona SEK 27.04 27.34
Swiss Franc CHF 317.76 320.26
Thai Bhat THB 7.76 7.91

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