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Here’s the monthly summary of chemistry stories that have hit the news. This month features news on a new record for the world’s smallest periodic table, how stir bar contamination could affect chemical reactions in laboratories across the world, and more! Larger summary images for each item are provided below, along with links to articles and studies for all the featured stories.

Note: links to studies behind a journal paywall are indicated with (£). Studies without this symbol are open access and can be accessed and read for free. Asterisked studies are free but require logging in to read. 

New record set for the world’s smallest periodic table: [Article]

New research explains why lemons are sour: [Article] [Study]

Analysis finds hazardous compounds in tattoo inks: [Article]

Sea spray spreads persistent pollutants into atmosphere: [Article] [Study*]

Stir bar contamination can catalyse reactions: [Article] [Study (£)]

Parkinson Disease ‘musk’ compounds identified: [Article] [Study (£)]

How mosquitoes detect human sweat identified: [Article] [Study]

Anaesthetic disrupts people’s traumatic memories: [Article] [Study]

Keep track of older #ChemMonthly posts on the category page. You can also keep up with stories through the month via the @Chemunicate account or the #ChemMonthly hashtag on Twitter.

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