MUMBAI, Oct. 24 -- With Mumbai's unhealthy air quality becoming a talking point, corporators across party lines are demanding answers from the civic administration and an action plan on measures to improve the city's air quality index (AQI). "We want bullet points on what exactly you are going to do," mayor Ritu Tawade told the civic administration, on measures it plans to take to enforce its air pollution mitigation guidelines. Opening the discussion during the civic general body meeting on Friday, leader of the opposition Kishori Pednekar questioned the efficacy of the 28-point pollution control guidelines and called for construction activity to be slowed during periods of deteriorating air quality. "We take our children out to play in the evenings. What are we exposing them to? The BMC imposes fines when violations are found, but what is the point of filling its coffers if worsening air quality is going to cost us our lives," she asked. Pednekar also sought ward-wise details of stop-work notices and show-cause notices issued in the last four years and action taken against errant developers. Congress group leader Ashraf Azmi alleged that permission for development is being granted indiscriminately despite there being more than 22,000 construction sites operating in the city. MNS corporator Yashwant Killedar said nearly 100 construction projects are underway in the Dadar-Mahim area, and flagged dust pollution around Shivaji Park, expressing concern over its impact on children's health. Around 28 corporators spoke on air pollution in Mumbai and demanded that the BMC take steps to bring the AQI into the "satisfactory" category, Leader of the house Ganesh Khankar said, "Only when the administration tells us what proactive measures it has taken will we know that it has seriously taken note of the issue," he said. Mayor Ritu Tawde questioned the reliability of air-quality monitoring boards installed by private developers and said their data was "not accurate". Ward officials are aware of this, she alleged. Additional municipal commissioner Avinash Dhakane cited a 2018-19 Maharashtra Pollution Control Board study to reject the allegations. He said marine particles contribute 18% of PM10 and 26% of PM2.5 to pollution, while road-dust resuspension accounts for 30%. Construction activity and vehicular emissions contribute 2% and 9%, respectively, according to the figures he cited....