User talk:180.151.196.34

July 2018
Hello. This is a message to let you know that one or more of your recent contributions, such as the edit you made to Chandigarh Airport, did not appear constructive and has been reverted. Please take some time to familiarise yourself with our policies and guidelines. You can find information about these at our welcome page which also provides further information about contributing constructively to this encyclopedia. If you only meant to make test edits, please use the sandbox for that. If you think I made a mistake, or if you have any questions, you may leave a message on my talk page. Thank you. Snowycats (talk) 06:17, 11 July 2018 (UTC)
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Recent edit to List of most-polluted cities by particulate matter concentration
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, List of most-polluted cities by particulate matter concentration, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you! Materialscientist (talk) 11:37, 1 March 2019 (UTC)