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can you help writing my summary for the article Air pollution increases
Air pollution increases crime in cities – here’s howMay 4, 2018Gary Haq, The ConversationThe impact of air pollution on human health is well-documented. We know that exposure to highlevels of air pollutants raises the risk of respiratory infections, heart disease, stroke, lung canceras well as dementia and Alzheimer’s disease. But there is growing evidence to suggest that airpollution does not just affect our health – it affects our behaviour too. (1)Lead was removed from petrol in the USA in the 1970s in response to concerns that vehicleemissions could be contributing to behavioural problems, learning difficulties and lowered IQamong children. In particular, childhood exposure to lead increases traits such as impulsiveness,aggression and low IQ – which can influence criminal behaviour. Taking lead out of petrol hassince been linked with a 56% drop in violent crime in the 1990s. (2)Short-term exposure to air pollution, especially sulphur dioxide, has been associated with a highrisk of hospital admissions for mental disorders in Shanghai. And in Los Angeles, a studyconcluded that higher levels of particulate matter pollution increases teenage delinquentbehaviour in urban neighbourhoods – though of course these effects are compounded by poorrelationships between parents and children, as well as social and mental distress on the part ofthe parents. (3)It now believed that exposure to air pollutants can cause inflammation in the brain. What’s more,fine particulate matter is harmful to developing brains, because it can damage brain and neuralnetworks and influence behaviour. (4)Criminal BehaviourThe evidence so far suggests that air pollution has the capacity to increase bad behaviour –especially among young people. But further research indicates that it can have even more seriousimpacts. One study of air pollution and crime in 9,360 US cities suggests that air pollutionincreases crime. Polluted air increases anxiety, which can in turn lead to a rise in criminal orunethical behaviour. The study concluded that cities with higher levels of air pollution had higherlevels of crime. (5)Recent research from the UK provides provides more information on this issue, by comparingdata for 1.8m crimes over two years with pollution data from London’s boroughs and wards. Theanalysis considered factors such as temperature, humidity and rainfall, days of the week anddifferent seasons. (6)The air quality index (AQI) reports how clean or polluted the air is each day. Researchers foundthat a 10 point raise in the AQI increases the crime rate by 0.9%. Levels of crime in London are therefore higher on the most polluted days. The study found that air pollution influenced crime inLondon’s wealthiest and poorest neighbourhoods. (7)Specifically, the findings linked higher air pollution levels in London to increases in petty crimesuch as shoplifting and pick-pocketing. But it is worth noting that the researchers found nosignificant impact on serious crimes such as murder, rape or assault resulting in severe injury. (8)The stress factorExposure to poor quality air can increase the stress hormone cortisol, which can influence riskperception. Higher levels of risk taking is one reason why there is a rise in criminal activity onpolluted days. The researchers conclude that reducing air pollution could reduce crime. (9)But other social and environmental factors may also influence people’s behaviour.Environmental disorder – such as broken windows and graffiti – can induce social and moraldisorder. The broken window theory suggests that signs of disorderly and petty criminalbehaviour trigger more disorderly and petty criminal behaviour, causing this behaviour to spread.(10)It is becoming clear the effects of polluted air goes beyond the well-known impacts on health andenvironment. Yet air pollution remains high in many countries. According to the World HealthOrganisation, nine out of ten people worldwide are now breathing in toxic air. (11)There’s still a lot we don’t know about how individual air pollutants can affect health andbehaviour, and how this differ with gender, age, class, income and geographic location. The linkbetween high levels of air pollution and increases in type of behaviour requires further robustevidence to determine a stronger causal link. (12)But there’s plenty of evidence to prove that poor air quality is bad for both our physical andmental health. Concerted action by national and local government is required to tackle theproblem by developing more sustainable transport, efficient and renewable energy productionand use, and waste management. (13)The UN BreatheLife campaign is now challenging citizens to take action by leaving their car athome and use alternative forms of transport for at least the distance of a marathon (42km/26miles) for one month. We all have a role to play in ensuring we can all breathe clean air, and gainthe benefits of improved physical, mental and social well-being. (14)
