Gurugram, June 1 -- Air quality in the city deteriorated in May, with an average daily reading of 143 on the air quality index (AQI), according to data from the Central Pollution Control Board (CPCB). This was up from an average AQI value of 110 in April, and 113 in March. Experts said they expected the uptick in pollution, as the past month has seen an increase in vehicular movement during phases three and four of the ongoing nationwide lockdown to curb the spread of the Covid-19 pandemic....