Environment
Results For "air quality "
![Heat styling products for hair may emit toxic gases: Study](https://media.assettype.com/nationalherald%2F2023-11%2F6295e9e9-46e1-4079-8884-1df13db91dd6%2F202311283088894.jpg?rect=0%2C0%2C299%2C168&auto=format%2Ccompress&fmt=webp&w=300)
Science Tech
Heat styling products for hair may emit toxic gases: Study
Environment
NGT issues notice on worsening air quality in Delhi, suburbs
![Ottawa air quality rising to 'very high risk' again due to forest fires](https://media.assettype.com/nationalherald%2F2023-06%2Ffe9b58d1-fbf5-4d2a-8e2c-73aa33fe0ed4%2F8eb83df08fc90f4cffc4fbb87e346c21__1_.jpg?rect=0%2C0%2C1200%2C675&auto=format%2Ccompress&fmt=webp&w=300)
Environment
Ottawa air quality rising to 'very high risk' again due to forest fires
Nation
Delhi gets 186 pc more rain this pre-monsoon season; Jan-May air quality best since 2016
![Very dense fog reduces visibility in national capital; flight, rail operations hit](https://media.assettype.com/nationalherald%2F2023-01%2Fe0fdf41c-224f-470a-aec0-272c4c9a1d22%2Fgettyimages_1338430892_612x612__1_.jpg?rect=0%2C63%2C1200%2C675&auto=format%2Ccompress&fmt=webp&w=300)
Nation
Very dense fog reduces visibility in national capital; flight, rail operations hit
![Mumbai to breathe more polluted air in coming times, warns study](https://media.assettype.com/nationalherald%2F2022-12%2F209ec647-7c6f-44e9-9166-92d9ba6e9807%2F93e610e8713a3d839cdb0d35fe117c67__1_.jpg?rect=259%2C0%2C1244%2C700&auto=format%2Ccompress&fmt=webp&w=300)
Nation
Mumbai to breathe more polluted air in coming times, warns study
![Delhi's air quality remains under 'very poor' category](https://media.assettype.com/nationalherald%2F2022-11%2Ffd8bb316-2ab3-4426-af88-1eb25365576c%2F9f9fa11279aa3845457dac07a93c3822__1_.jpg?rect=0%2C100%2C1200%2C675&auto=format%2Ccompress&fmt=webp&w=300)
Nation
Delhi's air quality remains under 'very poor' category
![Air quality in city remains poor](https://media.assettype.com/nationalherald%2F2022-11%2F9a6279e7-d350-48a9-9a50-55890bace0e1%2FAir_quality_in_Delhi__very_poor_.jpeg?rect=0%2C113%2C1200%2C675&auto=format%2Ccompress&fmt=webp&w=300)
Nation
Air quality in city remains poor
![Delhi's air quality poor, likely to improve](https://media.assettype.com/nationalherald%2F2022-11%2F1ab22966-de49-407a-a72b-bd633c89bf5f%2FAir_quality_in_Delhi__very_poor_.jpeg?rect=0%2C113%2C1200%2C675&auto=format%2Ccompress&fmt=webp&w=300)
Nation