Performance Assessment of Two Low-Cost PM2.5 and PM10 Monitoring Networks in the Padana Plain (Italy)

Sensors, Journal Year: 2024, Volume and Issue: 24(12), P. 3946 - 3946

Published: June 18, 2024

Two low-cost (LC) monitoring networks, PurpleAir (instrumented by Plantower PMS5003 sensors) and AirQino (Novasense SDS011), were assessed in PM2.5 PM10 daily concentrations the Padana Plain (Northern Italy). A total of 19 LC stations for 20 compared vs. regulatory-grade during a full “heating season” (15 October 2022–15 April 2023). Both sensor networks showed higher accuracy fitting magnitude than reference observations, while lower was shown terms RMSE, MAE R2. under-estimated both (MB = −4.8 −2.9 μg/m3, respectively), over-estimated +5.4 μg/m3) slightly −0.4 μg/m3). finer at capturing time variation (R2 0.68–0.75 0.59–0.61). sensors from failed to capture dynamics PM2.5/PM10 ratio, confirming their well-known issues correctly discriminating size individual particles. These findings suggest need further efforts implementation mass conversion algorithms within units improve tuning outputs.

Language: Английский

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Low-Cost PM_2.5 Sensor Performance Characteristics against Meteorological Influence in Sub-Saharan Africa: Evidence from the Air Sensor Evaluation and Training Facility for the West Africa Project

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Fine particulate matter (PM2.5) pollution represents a major environmental health risk in Africa. The use of low-cost sensors (LCS) for air quality monitoring policy and civic engagement sub-Saharan Africa (SSA) has become paramount, as access to traditional reference-grade instruments is still sparse. Yet, studies pertaining sensor performance under SSA's meteorological conditions diverse emission sources are limited. Hence, we tested eight PM2.5 on the market from different manufacturers containing Plantower PMS, Alphasense OPC-N3, AVO-Sensor by collocating them with federal equivalent method Teledyne T640 ascertain data accuracy, reliability, responsiveness during wet dry periods. After 6 months collocation, concentrations LCS showed low intrasensor variability both periods, but high intersensor T640. A strong relationship existed between T640, average coefficient determination (R2) values 0.7 (range: 05–0.9) 0.8 (0.64–0.97) respectively. Larger errors were also associated than period, mean absolute error root squared error, respectively, 4.5 5.3 times higher period. Uncertainties large observed measured levels that more common period typically characterized long-range transport pollution. results show season significantly affects care must be taken deployment usage SSA, regular maintenance, particularly season. Strong collaborative efforts governmental agencies, industries, civil society needed come up an effective framework their application.

Language: Английский

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Heatwaves Amplify Air Pollution Risks in Sub-Saharan Africa

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Despite mounting evidence that heatwaves aggravate urban air pollution, with substantial impacts on public health, comparatively little research has addressed Sub-Saharan African contexts. In this study, we focused Kigali, Rwanda, to assess the relationship between extreme heat events and concentrations of fine particulate matter (PM₂.₅), nitrogen dioxide (NO₂), ozone (O₃) from 2021 2024. Using low-cost sensors for dense spatiotemporal coverage, our analysis found O₃ increased significantly during 6 heatwave peak values up 40% higher than non-heatwave in afternoon. Heatwaves also resulted spikes PM_2.5 NO₂, however diurnal seasonal analyses showed NO₂ dynamics were shaped more by local emissions sources temperature alone. These results highlight compound risks pollution sub-Saharan cities, underscoring importance early-warning systems robust policies account both pollution. addition, atmospheric identified differ those observed high-income countries, highlighting a critical need exploring intersection Africa.

Language: Английский

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Assessment of risk components for urban population to heat intensity and air pollution through a dense IoT sensor network

Urban Climate, Journal Year: 2025, Volume and Issue: 61, P. 102397 - 102397

Published: April 7, 2025

Language: Английский

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Assessing capability of Copernicus Atmosphere Monitoring Service to forecast PM2.5 and PM10 hourly concentrations in a European air quality hotspot

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: unknown, P. 102567 - 102567

Published: May 1, 2025

Language: Английский

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The impact of stone quarries on the anatomy, morphology, and biochemistry of Urtica dioica L. (Urticaceae) in two natural protected areas in southwestern Romania

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: unknown, P. 102578 - 102578

Published: May 1, 2025

Language: Английский

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Coincidence Effect of a Low-Cost Particulate Matter Sensor: Observations from Environmental Chamber Tests at Diverse Particle Concentrations

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: unknown, P. 102581 - 102581

Published: May 1, 2025

Language: Английский

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