Review of the Performance of Low-Cost Sensors for Air Quality Monitoring

Karagulian, Federico; Maurizio, Barbiere; Kotsev, Alexander; Spinelle, Laurent; Gerboles, Michel; Lagler, Friedrich; Redon, Nathalie; Crunaire, S.; Annette, Borowiak

doi:10.3390/atmos10090506

Cited by 333 publications

(307 citation statements)

References 70 publications

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“…Particularly in photocopy centers, the assessments may be further In principle, the concept of applying low-cost sensors for monitoring the indoor air quality in photocopy centers regarding gaseous and particulate matter is promising. 102 However, as pointed out by Karagulian et al, 103 the current performance of many low-cost sensors measuring particulate matter is still very poor, which may result in misleading conclusions.…”

Section: Con Clus Ionsmentioning

confidence: 99%

Review of the characteristics and possible health effects of particles emitted from laser printing devices

Karrasch

Salthammer

2020

Indoor Air

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This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. AbstractMany studies have shown that the use of laser printing devices (LPDs) contributes to the release of particles into the indoor environment. However, after more than two decades of research, the physicochemical properties of LPD-emitted particles and the possible health effects from exposure to particles are still heavily debated.We therefore carried out a critical review of the published studies around emissions and health effects of LPD-emitted particles, aiming at elucidating the nature of these particles and their potential health risks. Realizing the varying methodologies of the studies, a classification of the reviewed studies is adopted, resulting in three categories of emission studies (chamber experiment, office/room measurement, and photocopy shop measurement), and three types of health studies (in vitro/animal studies, human studies in the real world, and human studies in controlled settings).The strengths and limitations of each type of study are discussed in-depth, which in turn helps to understand the cause of divergent results. Overall, LPD-emitted particles are mainly condensed or secondary-formed semi-volatile organic compounds (SVOCs), while solid toner particles account for a very small fraction. The health risk from exposure to LPD-emitted particles is small compared with the health risk from exposure to ambient particles. K E Y W O R D S emission, exposure, indoor air quality, laser printer, particulate matter, risk | 397 GU et al.

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Section: Con Clus Ionsmentioning

confidence: 99%

Review of the characteristics and possible health effects of particles emitted from laser printing devices

Karrasch

Salthammer

2020

Indoor Air

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“…Low-cost PM sensors could also help improve the understanding of indoor air pollution, in particular where high levels of outdoor air pollution preclude ventilation with outdoor air [24,25]. At present there is insufficient data to validate their use for regulatory purposes [26][27][28], which is particularly urgent in developing countries.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Comparison of Low-Cost Particulate Matter Sensors to Measure Transient Events of Pollution

Bulot

Russell

Rezaei

et al. 2020

Sensors

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Airborne particulate matter (PM) exposure has been identified as a key environmental risk factor, associated especially with diseases of the respiratory and cardiovascular system and with almost 9 million premature deaths per year. Low-cost optical sensors for PM measurement are desirable for monitoring exposure closer to the personal level and particularly suited for developing spatiotemporally dense city sensor networks. However, questions remain over the accuracy and reliability of the data they produce, particularly regarding the influence of environmental parameters such as humidity and temperature, and with varying PM sources and concentration profiles. In this study, eight units each of five different models of commercially available low-cost optical PM sensors (40 individual sensors in total) were tested under controlled laboratory conditions, against higher-grade instruments for: lower limit of detection, response time, responses to sharp pollution spikes lasting <1 min, and the impact of differing humidity and PM source. All sensors detected the spikes generated with a varied range of performances depending on the model and presenting different sensitivity mainly to sources of pollution and to size distributions with a lesser impact of humidity. The sensitivity to particle size distribution indicates that the sensors may provide additional information to PM mass concentrations. It is concluded that improved performance in field monitoring campaigns, including tracking sources of pollution, could be achieved by using a combination of some of the different models to take advantage of the additional information made available by their differential response.

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“…Hence, values obtained from such a sensor were compared with that of the Grimm EDM 180, which has a high-quality and stable sensor based on the principle of measuring individual aerosol particle light scatter to provide high-quality measurements [35]. Data reported in this manner will have less uncertainty and be synchronized/calibrated with ambient conditions [36]. More details about the instrument inter-comparison and data correction are provided in Supplementary Material S2.…”

Section: Ambient Measurementsmentioning

confidence: 99%

Cookstove Smoke Impact on Ambient Air Quality and Probable Consequences for Human Health in Rural Locations of Southern Nepal

Adhikari

Mahapatra

Pokheral

et al. 2020

IJERPH

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Residential emission from traditional biomass cookstoves is a major source of indoor and outdoor air pollution in developing countries. However, exact quantification of the contribution of biomass cookstove emissions to outdoor air is still lacking. In order to address this gap, we designed a field study to estimate the emission factors of PM2.5 (particulate matter of less than 2.5 µ diameter) and BC (black carbon) indoors, from cookstove smoke using biomass fuel and with smoke escaping outdoors from the roof of the house. The field study was conducted in four randomly selected households in two rural locations of southern Nepal during April 2017. In addition, real-time measurement of ambient PM2.5 was performed for 20 days during the campaign in those two rural sites and one background location to quantify the contribution of cooking-related emissions to the ambient PM2.5. Emission factor estimates indicate that 66% of PM2.5 and 80% of BC emissions from biomass cookstoves directly escape into ambient air. During the cooking period, ambient PM2.5 concentrations in the rural sites were observed to be 37% higher than in the nearby background location. Based on the World Health Organization (WHO)’s AirQ+ model simulation, this 37% rise in ambient PM2.5 during cooking hours can lead to approximately 82 cases of annual premature deaths among the rural population of Chitwan district.

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Review of the Performance of Low-Cost Sensors for Air Quality Monitoring

Cited by 333 publications

References 70 publications

Review of the characteristics and possible health effects of particles emitted from laser printing devices

Review of the characteristics and possible health effects of particles emitted from laser printing devices

Laboratory Comparison of Low-Cost Particulate Matter Sensors to Measure Transient Events of Pollution

Cookstove Smoke Impact on Ambient Air Quality and Probable Consequences for Human Health in Rural Locations of Southern Nepal

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