Booker, Douglas

Ferguson, Rob

Gauthier, Stephanie

Mehra, Archit

Nasar, Zaheer

Rangel, Alejandro Moreno

Rolfo, Stefano

Stevenson, Elizabeth

Zhong, Jo

Online Research @ Cardiff

International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberSources, behaviour and mitigation strategies influencing indoor air qualityDr Stephanie Gauthier (University of Southampton, UK)Dr Vicki Stevenson (Cardiff University) Dr Archit Mehra (University of Chester) Dr Zaheer Nasar (Cranfield University) Dr Stefano Rolfo (STFC) Dr Alejandro Moreno Rangel (Lancaster University) Dr Jo Zhong (Nottingham Trent University) Dr Rob Ferguson (University of Essex) Dr Douglas Booker (NAQTS)23rd September 20212International Conference on Evolving CitiesUniversity of Southampton, 22-24th September• Average UK person spends 90% time indoor• High exposure to   indoor air pollutants:Indoor air quality⏤ particulate matter⏤ volatile organic compounds⏤ carbon monoxide⏤ biological materials3International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberSources of pollution4International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberBehaviour: cooking• UK Time Use Survey to establish frequency & duration of behaviour24h (4am to 4 am) - Ten mintues intervals Number of reported activity02004006008004 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 48:00 for 15 min 17:30 for 20 min12:30 for 20 min5International Conference on Evolving CitiesUniversity of Southampton, 22-24th September24h (4am to 4 am) - Ten mintues intervals Number of reported activity01002003004005006004 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4Behaviour: cleaning• UK Time Use Survey to establish frequency & duration of behaviour9:50 for 25 min6International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberBehaviour: typical schedule for a dayActivity Time Duration (mins)CookingBreakfast – Toast & Tea08:00 – 08:16 16Leave the room 08:16 – 09:10Washing up 09:10 – 09:25 15Leave the room 09:25 – 09:50Cleaning the dwelling 09:50 – 10:15 25Leave the room 10:15 – 12:30CookingPasta – low emission12:30 – 12:48 18Leave the room 12:48 – 13:30Washing up 13:30 – 13:46 16Leave the room 13:46 – 17:30CookingStir fry - High emission17:30 – 17:53 23Leave the room 17:53 – 18:40Washing up 18:40 – 18:57 177International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberQuestion:What would be the particulate emission from these two dishes under different ventilation scenarios?8International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberMitigation strategies• Reduce behaviours – cooking, cleaning, solid-fuel fires, use of candles, smoking, etc.• Choose low emission materials• Increase ventilationReference: NICE (2020) Improving indoor air quality 9International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberTestsReference: University of Chester https://www1.chester.ac.uk/news/university-project-analyse-air-quality-home?list=6800&linkedin4 tests: • two days low ventilation (Tue 6th & Wed 7th July 2021)• two days high ventilation (Thu 8th & Fri 9th July 2021)Measures: T, RH, Va, CO2, NOx, PM1, PM2.5, PM10, O3, TVOC, CH4, irradiance, bioaerosol 10International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberEarly Results – PM10Day 1 Day 2 Day 3 Day 4020040060080010001200μg/m³11International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberEarly Results – PM10Low ventilation020040060080010001200μg/m³12International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberEarly Results – PM10Stir fryStir fryPastaToastsPastaToasts PastaToasts Stir fry PastaToasts Stir fry020040060080010001200μg/m³13International Conference on Evolving CitiesUniversity of Southampton, 22-24th SeptemberConclusionsExposure is linked to• Behaviour: type, duration, frequencystir fry cooking (344 μg/m³/20min) = 19.2 * pasta cooking (18 μg/m³/20min) • Ventilation practiceslow ventilation (daily mean 20.4 μg/m³) = 2.6 * high ventilation (daily mean 7.7 μg/m³) WHO 09/2021 15 μg/m3 annual mean & 45 μg/m3 24-hour meanEnergy and Climate Change Division | Sustainable Energy Research GroupUniversity of Southampton | www.energy.soton.ac.uk | @EnergySoton Organised by International Conference on EVOLVING CITIES University of SouthamptonSEPT 22-24#ICEC2021

Sources, behaviour and mitigation strategies influencing indoor air quality

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Sources, behaviour and mitigation strategies influencing indoor air quality

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