New Delhi considers artificial rain to combat smog
The government of the Indian capital New Delhi is considering using artificial rain to combat the current smog. The process is called "cloud seeding" - chemicals such as silver iodide are dispersed in the air. This is intended to stimulate the formation of water droplets and ultimately lead to rain.
The measure is expected to cost around 30 million rupees (336,000 euros) and bring some improvement to the inhabitants of the megacity for at least a week, reported the local "Economic Times" on Saturday, citing scientists from the Indian Institute of Technology in Kanpur. However, several permits would still be required for the artificial rain to be initiated, Environment Minister Gopal Rai recently told the Indian television channel NDTV.
Particulate matter pollution in and around New Delhi is among the highest in the world - and it is particularly high in winter. It is many times higher than the limits considered acceptable by the World Health Organization (WHO). The reason for the winter smog: despite the ban, farmers in the surrounding states are currently burning crop residues in order to be able to grow crops again quickly and cheaply. Added to this are exhaust fumes from cars, industry and dust from construction sites and waste incineration. Nevertheless, many people in the capital do not see air pollution as a major problem and the government is mainly taking short-term emergency measures. Sunday is also the important Hindu festival of lights, Diwali, which many people celebrate with fireworks despite the air pollution.
The colorful fireworks during Diwali festivities further intensified the smog issue in New Delhi, contributing to the high particulate matter pollution. Despite the looming storm warning, the weather remained dry, failing to provide natural relief from the city's air pollution crisis.
Source: www.dpa.com
