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HealthQuiet 47h · day 9

Meta-analysis links air pollution to higher suicide risk

Queen's University Belfast researchers find particulate matter and NO2 exposure associated with suicide and suicidal thoughts, but experts caution against inferring causation.

newest coverage 1d agosummary written 7d ago41 pieces6 likes & upvotes1 comments NewswiresMastodonGoogle NewsReddit

What to know

  • A meta-analysis of 29 studies by Queen's University Belfast found small particulate matter and nitrogen dioxide exposure linked to higher risk of suicide, suicide attempts and suicidal ideation.
  • A broader narrative review of 16 additional studies suggested sulphur dioxide, ozone and noise pollution may also raise risk, but evidence on light and water pollution was inconclusive.
  • Multiple experts, including from Samaritans, the Royal College of Psychiatrists and the University of Bristol, caution the findings show association rather than proven causation, given confounders like deprivation and urban living.
  • The study authors argue pollution reduction and cross-sectoral public health policy could play a role in suicide prevention strategies.

“The study provides further population-level support for reducing harmful air pollution, though the findings should not be seen as supporting individual suicide risk prediction or suggesting that pollution reduction alone could be a suicide prevention measure.”

Dr Jon Van Niekerk, Chair, Royal College of Psychiatrists general adult faculty · The Guardian ↗ · Sep 14

Queen's University Belfast researchers study authorsDr Jess Moody Senior research and evidence manager, SamaritansDr Jon Van Niekerk Chair, general adult faculty, Royal College of PsychiatristsDr Rosie Cornish Senior research fellow in epidemiology, University of Bristol

Meta-analysis links air pollution to higher suicide risk
theguardian.com

How it unfolded 3 developments, newest first · click a bar or a number to jump articlespostscomments

Peak 18 pieces in two hours at Sep 15, 4 PM; 41 pieces over 9 days (36 articles · 4 posts · 1 comment) Sep 15, 4 PM — 18 pieces · 17 articles · 1 post — Google News 15, Newswires 2, Mastodon 1Sep 15, 6 PM — quietSep 15, 8 PM — 1 piece · 1 article — Google News 1Sep 15, 10 PM — quietSep 16, 12 AM — 1 piece · 1 article — Google News 1Sep 16, 2 AM — quietSep 16, 4 AM — 2 pieces · 2 articles — Google News 2Sep 16, 6 AM — 4 pieces · 2 articles · 1 post · 1 comment — Reddit 2, Google News 1, Newswires 1Sep 16, 8 AM — quietSep 16, 10 AM — quietSep 16, 12 PM — quietSep 16, 2 PM — quietSep 16, 4 PM — 1 piece · 1 article — Newswires 1Sep 16, 6 PM — quietSep 16, 8 PM — quietSep 16, 10 PM — quietSep 17, 12 AM — quietSep 17, 2 AM — quietSep 17, 4 AM — quietSep 17, 6 AM — 5 pieces · 5 articles — Google News 4, Newswires 1Sep 17, 8 AM — quietSep 17, 10 AM — quietSep 17, 12 PM — quietSep 17, 2 PM — quietSep 17, 4 PM — quietSep 17, 6 PM — quietSep 17, 8 PM — quietSep 17, 10 PM — quietSep 18, 12 AM — quietSep 18, 2 AM — quietSep 18, 4 AM — quietSep 18, 6 AM — quietSep 18, 8 AM — quietSep 18, 10 AM — quietSep 18, 12 PM — 5 pieces · 5 articles — Google News 4, Newswires 1Sep 18, 2 PM — quietSep 18, 4 PM — quietSep 18, 6 PM — quietSep 18, 8 PM — quietSep 18, 10 PM — quietSep 19, 12 AM — quietSep 19, 2 AM — quietSep 19, 4 AM — quietSep 19, 6 AM — quietSep 19, 8 AM — quietSep 19, 10 AM — quietSep 19, 12 PM — quietSep 19, 2 PM — quietSep 19, 4 PM — quietSep 19, 6 PM — 1 piece · 1 post — Mastodon 1Sep 19, 8 PM — quietSep 19, 10 PM — quietSep 20, 12 AM — quietSep 20, 2 AM — quietSep 20, 4 AM — quietSep 20, 6 AM — quietSep 20, 8 AM — quietSep 20, 10 AM — quietSep 20, 12 PM — quietSep 20, 2 PM — quietSep 20, 4 PM — quietSep 20, 6 PM — quietSep 20, 8 PM — quietSep 20, 10 PM — 1 piece · 1 article — Google News 1Sep 21, 12 AM — quietSep 21, 2 AM — quietSep 21, 4 AM — quietSep 21, 6 AM — quietSep 21, 8 AM — quietSep 21, 10 AM — quietSep 21, 12 PM — quietSep 21, 2 PM — quietSep 21, 4 PM — quietSep 21, 6 PM — quietSep 21, 8 PM — quietSep 21, 10 PM — 1 piece · 1 article — Google News 1Sep 22, 12 AM — quietSep 22, 2 AM — quietSep 22, 4 AM — 1 piece · 1 post — Mastodon 1Sep 22, 6 AM — quietSep 22, 8 AM — quietSep 22, 10 AM — quietSep 22, 12 PM — quietSep 22, 2 PM — quietSep 22, 4 PM — quietSep 22, 6 PM — quietSep 22, 8 PM — quietSep 22, 10 PM — quietYesterday, 12 AM — quietYesterday, 2 AM — quietYesterday, 4 AM — quietYesterday, 6 AM — quietYesterday, 8 AM — quietYesterday, 10 AM — quietYesterday, 12 PM — quietYesterday, 2 PM — quietYesterday, 4 PM — quietYesterday, 6 PM — quietYesterday, 8 PM — quietYesterday, 10 PM — quietToday, 12 AM — quietToday, 2 AM — quietToday, 4 AM — quiet 1–23
Sep 16Sep 17Sep 18Sep 19Sep 20Sep 21Sep 22yesterdaynow · 5:46 AM ET
  1. 3

    Story spreads across international outlets

    Coverage of the meta-analysis was picked up by outlets including Euronews, The Independent, The Irish Times, India Today and others, and circulated on r/science, generally repeating the study's findings and caveats.

    • Welcome to r/science ! This is a heavily moderated subreddit in order to keep the discussion on science. However, we recognize that many people want to discuss how they feel the research relates to their own personal lives, so to give people a space to do that, personal anecdotes are allowed as responses to this comment . Any anecdotal comments…

      AutoModeratorr/science7d agoview on r/science ↗
  2. 2

    Commentator speculates on mechanism beyond the study's evidence

    A social media user speculated, going beyond the published findings, that particulate exposure might subtly impair affective regulation and impulse control across whole populations, potentially visible in crime statistics as well.

    “I think it’ll turn out that acute particulate exposure *slightly but significantly degrades affective regulation and/or impulse control* across an entire exposed population…”
    — @adamgreenfield@social.coop
    • adamgreenfield@social.coop

      I’m going to stake myself to an odd speculation beyond the available evidence: I think it’ll turn out that acute particulate exposure *slightly but significantly degrades affective regulation and/or impulse control* across an entire exposed population, in ways that will be visible across crime statistics as well as other registers of morbidity and…

      adamgreenfield@social.coopMastodon8d agoview on Mastodon ↗
  3. 1

    Mental health experts urge caution on causation

    Samaritans, the Royal College of Psychiatrists and a University of Bristol epidemiologist welcomed the research's attention to environmental risk factors but stressed the study does not prove air pollution causes suicidal behaviour, given confounding factors like deprivation and urban living.

    “If air pollution is not actually a cause of increased risk of suicide then reducing pollution will not help to prevent suicide. The authors do not acknowledge this when drawing their conclusions.”
    — Dr Rosie Cornish, University of Bristol
    1. 10 outlets Air pollution linked to higher suicide risk and suicidal behavior: Study

      first by India Today, 8d ago · also Euronews, MedPage Today, PTC News, The Hindu, Deccan Chronicle, DD News +3

      7 more headlines
    2. 9 outlets Can Air Pollution Raise Suicide Risk? Study Finds A Possible Link

      first by Health and Me, 8d ago · also Indiablooms, WZMQ 19 News, Inshorts, The Irish Times, The Independent, Scimex +2

      7 more headlines
    2 more claims →
  4. background

    Queen's University Belfast researchers publish pollution-suicide meta-analysis — Scientists analysed 29 studies and found that airborne small particulate matter and nitrogen dioxide exposure were associated with a heightened risk of death by suicide, suicide attempts and suicidal ideation; a narrative review of 16 further studies suggested sulphur dioxide, ozone and noise pollution may also raise risk, while evidence on light and water pollution was inconclusive.

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