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Publication Detail
Carbon Dioxide Monitoring in Refuse Collection Vehicle Cabins to Reduce the Risk of SARS-CoV-2 Airborne Transmission
  • Publication Type:
  • Authors:
    Adzic F, Malki-Epshtein L
  • Publication date:
  • Published proceedings:
  • Status:
  • Name of conference:
    17th International Conference of the International Society of Indoor Air Quality & Climate (Indoor Air 2022)
  • Conference place:
    Kuopio, Finland
  • Conference start date:
  • Conference finish date:
  • Keywords:
    CO2 monitoring, COVID-19, IAQ, Indoor Air Quality, SARS-CoV-2
During the COVID-19 pandemic, essential workers such as waste collection crews continued to provide services in the UK, but due to their small size, maintaining social distancing inside waste collection vehicle cabins is impossible. Ventilation in cabins of 11 vehicles operating in London was assessed by measuring air supply flow rates and carbon dioxide (CO2) in the driver’s cabin, a proxy for exhaled breath. The indoor CO2 indicated that air quality in the cabins was mostly good throughout a working day. However, short episodes of high CO2 levels above 1500 ppm did occur, mainly at the beginning of a shift when driving towards the start of their collection routes. This data indicated that the ventilation systems on the vehicles were primarily recirculating air and the fresh air supply made up only 10-20 % of the total airflow. Following recommendations to partly open windows during shifts and to maintain ventilation systems, a second monitoring campaign was carried out, finding on average, an improvement in ventilation on board the vehicles.
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