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| ('theguardian.com/environment/2018/oct/27/air-pollution-is-the-new-tobacco-warns-who-head', 43)                                  | Each passing month sees new studies showing further harms of toxic air , with recent revelations including a >>>" huge reduction " in intelligence<<< , millions of diabetes cases and the first direct evidence of pollution particles in mothers ' placentas . |
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| ('theguardian.com/environment/2018/sep/18/air-pollution-causes-jump-in-dementia-risk-study-suggests', 12)                        | A ground-breaking study from China recently found a >>>" huge " reduction in intelligence associated with breathing dirty air<<< , equivalent to losing a year 's education .                                                                                    |
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| ('theguardian.com/environment/2018/sep/22/invisible-killer-how-one-girls-tragic-death-could-change-the-air-pollution-story', 71) | New research has >>>linked it with reduced intelligence<<< , with changes in the structure of the heart consistent with the early stages of heart failure , and now with damage to the placentas of pregnant women and the onset of dementia .                   |
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| ('theguardian.com/environment/2018/sep/28/uks-children-denied-basic-human-right-to-clean-air-says-unicef', 7)                    | Unicef 's intervention follows a series of new studies which highlight >>>the impact of the UK 's air pollution<<< crisis on children 's health and will increase the pressure on government to intervene .                                                      |
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| ('theguardian.com/environment/2019/dec/18/depression-and-suicide-linked-to-air-pollution-in-new-global-study', 20)               | Other research indicates that >>>air pollution causes a " huge " reduction in intelligence<<< and is linked to dementia .                                                                                                                                        |
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| ('theguardian.com/environment/2019/feb/04/europes-most-deprived-areas-hit-hardest-by-air-pollution', 16)                         | Polluted air is also being increasingly linked to new-onset type 2 diabetes in adults , obesity in children , systemic inflammation , Alzheimer 's disease and >>>IQ deficiency<<< .                                                                             |
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| ('theguardian.com/environment/2019/jan/12/drivers-resist-low-emission-scheme-as-london-struggles-to-clean-up-its-air', 6)        | Air pollution in the UK causes at least 40,000 early deaths a year – 9,000 in London – and is linked to a growing number of debilitating conditions , from heart disease to cancer and Alzheimer 's , as well as a >>>decline in<<< intelligence .               |
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| ('theguardian.com/environment/2019/jan/14/uk-failed-to-enforce-eu-air-quality-standards-what-will-happen-after-brexit', 1)       | Thanks to groundbreaking research in the last few years , we now know the problem goes much further , to the root of human health : air pollution has been linked to miscarriage , dementia , heart disease and >>>lower intelligence<<< .                       |
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| ('theguardian.com/environment/2019/jan/30/children-exposed-to-air-pollution-more-likely-to-develop-depression', 20)              | Research on adults has so far produced conflicting results , although there is strong evidence that air pollution can result in a >>>>>>" significant<<< reduction in intelligence "<<< .                                                                        |
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| ('theguardian.com/environment/2019/nov/13/air-pollution-particles-linked-to-brain-cancer-in-new-research', 12)                   | Toxic air has been linked to other effects on the brain , including >>>huge<<< >>>reductions in intelligence<<< , dementia and mental health problems in both adults and children .                                                                              |
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| ('theguardian.com/environment/2020/aug/24/children-raised-greener-areas-higher-iq-study', 16)                                    | Higher levels of >>>air pollution are known to<<< >>>impair intelligence<<< and childhood development but this factor was also ruled out as an explanation .                                                                                                     |
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| ('theguardian.com/world/2018/aug/28/tuesday-briefing-hello-enrique-trump-dials-for-mexican-trade-deal', 20)                      | >>>High pollution levels led to drops in test scores on language and arithmetic<<< . "                                                                                                                                                                           |
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