New Delhi, April 13 -- Air pollution could be making rainfall more acidic in cities such as Vishakhapatnam, Allahabad, Mohanbari (Assam), while dust from the Thar could be making rain more alkaline in Jodhpur, Pune and Srinagar, according to an analysis.
The study by the India Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM), Pune, analysed the pH value-which measures acidity or basicity-of rainfall of ten cities in India.
The data recorded at GAW stations from 1987 to 2021 were analysed.
The findings are published by the IMD as a 'met monograph', a comprehensive analysis of a meteorological topic.
The study suggests that atmospheric conditions and local emissions can affect the chemistry or pH of ...