Measuring Particle Concentration and Compositions in Indoor Air

Wallace, Lance; Hopke, Philip K.

doi:10.1007/978-981-10-5155-5_19-1

Cited by 1 publication

(2 citation statements)

References 194 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As regards UFP, the most intense source is e-cig, followed by incense and traditional cigarettes, demonstrating a similar impact, and lastly HNB. This confirms the findings of [26] about the relevance of e-cig source in the production of UFP particles. Figure 7, shows how e-cig and HNB emissions exhibit the quickest decay in agreement with the results reported in [19].…”

Section: Source Comparisonsupporting

confidence: 91%

“…Conducting exposure studies to quantify indoor air quality would also require high spatial resolution, which is often unfeasible indoors due to the high cost, dimensions, noise, nuisance, and low portability of traditional instrumentation. In recent years, the use of PM LCS for indoor air quality monitoring has grown rapidly, helping to address these issues, and increasing the feasibility of a more widespread monitoring [26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Long-Term Characterization of Indoor Air Quality at a Research Area Building: Comparing Reference Instruments and Low-Cost Sensors

Calvello,

Agresti,

Esposito

et al. 2024

Indoor Air

View full text Add to dashboard Cite

Indoor particle number size distribution (0.3-10 μm), equivalent black carbon (eBC), and Ångström absorption exponent (AAE) data were collected in real conditions, over a ten-month period at a research area building, in a semirural site, to characterize indoor aerosol loading. Additionally, during the campaign, emissions from four indoor sources commonly used at the site (incense, traditional cigarettes, electronic cigarettes, and heat-not-burn products) were studied during short-term experiments with the support of ultrafine particle (UFP) monitoring. Two particle low-cost sensors (PM LCS), Sensirion SPS30 (0.3-10 μm), were evaluated in the long-term campaign and during fast emission processes, to assess their accuracy and reliability. Penetration and infiltration of both fine and coarse particles from outdoor traffic, domestic heating, and dust resuspension were inferred as the main sources of indoor aerosols on a long-term basis. Moreover, long-range transported dust aerosols were found to influence indoor coarse number concentration. Among the source events, heat-not-burn (HNB) product resulted in the lowest effect on indoor air quality, whereas the highest AAE values from incense and traditional cigarettes suggest the brown carbon (BrC) production. The highest emission of UFP was caused by electronic cigarettes (e-cig), which spanned particles from the ultrafine to the coarse fractions. This was likely due to the release of metal and silicate from the coil. Analysis of number size distributions of the four experiments revealed the emission of fine particles (0.3-1 μm) and super micron particles. SPS30s performance was satisfactory in terms of accuracy, precision, and durability, indicating that these devices are suitable for monitoring indoor air quality. Additionally, the two PM LCS were able to detect all simulated fast emission sources.

show abstract

Section: Source Comparisonsupporting

confidence: 91%