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App to measure pollution exposure
11 March 2019
KING'S COLLEGE London and British Safety Council launch Canairy, the world’s first mobile app for outdoor workers to measure their exposure to air pollution in London.
A unique app launched today by King’s College London for the British Safety Council’s Time to Breathe campaign, provides outdoor workers with information to help them reduce their exposure to air pollution and employers with intelligence to enable them to protect the health of their workers.
Air pollution, linked up to 36,000 early deaths a year, is considered the biggest environmental risk to public health. Research from King’s College London suggests that more than 9,400 people die prematurely due to poor air quality in London alone. In 2013, International Agency for Research on Cancer classified diesel exhaust as carcinogenic to humans.
Canairy draws on the London Air Quality Network (LAQN) pollution map at King’s and the worker’s GPS to calculate a user’s exposure to pollution on an hourly basis. Once this exposure exceeds World Health Organisation’s (WHO) limits for the concentration of nitrogen dioxide, particulates and ozone, the app notifies the user and suggests tips to reduce their exposure, including working away from traffic, reducing strenuous work or putting up a screen barrier.
The app will, for the first time, collect information to enable the mapping of where and to what degree exposure is happening across the capital. Employers will be able to access this anonymised exposure data relating to their workers and use it to inform how they schedule work for them to avoid the worst levels of toxic air.
Andrew Grieve, Senior Air Quality Analyst, King’s College London, said: “As a group, outdoors workers are particularly vulnerable to long-term exposure to ambient air pollution. Within a workplace, the risk of people’s exposure to polluted air can be controlled using well-established methods, but this is more difficult for outdoor workers, many of whom work near or on busy roads.
“The app gathers data from the London network, the most advanced urban air quality monitoring network in the world, which, combined with traffic data and topographical information, produces the most sophisticated model for pollution we have in the UK. We hope that the information provided by the app can be used to inform health risk assessments and contribute to scheduling work that reduces exposure. Crucially, it can also help employers and workers to monitor their progress in avoiding unhealthy levels of pollution.”
Together with the app, the British Safety Council is launching a UK-wide Time to Breathe campaign with a publicity event staged in Oxford Circus, central London, on Tuesday, 12 March. The campaign aims to draw the attention of employers, policy-makers and regulators in order for them to take the risks of air pollution to the health of outdoor workers seriously. It will provide free resources, including posters and advice, for workers and employers to use in making changes to reduce their exposure to harmful air pollution.
Chairman of the British Safety Council Lawrence Waterman said, “Our campaign will highlight every employer’s duty of care for the risks from ambient air pollution. The regulator (HSE) tells us that it doesn’t regulate the ambient environment, and the recent Clean Air Strategy had little or nothing to say about people who spend their working lives outdoors. These workers are caught in a blind spot and we think their health is at risk.
“By working with King’s College London and our members we have been able to bring technology and business together to raise awareness of the dangers from air pollution to outdoors workers. We want employers to use the information as part of their consultations with their workers and work together to reduce their exposure.
“We are calling on London-based employers to join those trialling Canairy and help us build an accurate picture of the exposure faced by outdoor workers. This information will be a cornerstone of future campaigns for better research into the links between occupation and health data. Given that we don’t even know how many outdoor workers there are in the UK, we need those authorities with responsibility for our health and environment to work together on this issue."
Mitesh Solanki, managing director for Kier Local Authority Highways, commented, “At Kier, the health and wellbeing of our workforce is our number one priority and I’m really pleased that our LoHAC (London Highway Alliance) contract with TfL was the first to trial Canairy. This proactive approach to utilising the latest technology will help us reduce our people’s exposure to air pollution, which is a serious concern for all responsible employers.”
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