| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 7.39 MB | Adobe PDF |
Advisor(s)
Abstract(s)
Indoor environmental quality is of utmost importance since urban populations spend much of their life in confined spaces. Supermarkets offer a wide range of products and services that are prone to emitting several air pollutants. This study aimed to comprehensively characterize indoor and outdoor air quality in a multinational supermarket, encompassing not only criteria parameters but also unregulated pollutants of concern. Monitoring included measurements of comfort parameters, CO2, multiple gaseous pollutants, particulate matter (PM10), and bioburden. PM10, volatile organic compounds (VOCs), and carbonyls were subject to chemical speciation. Globally, the supermarket presented CO2, VOCs, and PM10 values below the limits imposed by international regulations. The PM10 concentration in the supermarket was 33.5±23.2 μg/m3, and the indoor-to-outdoor PM10 ratio was 1.76. Carbonaceous constituents represented PM10 mass fractions of 21.6% indoors and 15.3% outdoors. Due to the use of stainless-steel utensils, flour, and fermentation processes, the bakery proved to be a pollution hotspot, presenting the highest concentrations of PM10 (73.1±9.16 μg/m3), PM10-bound elements (S, Cl, K, Ca, Ti, and Cr) and acetaldehyde (42.7 μg/m3). The maximum tetrachloroethylene level (130 μg/m3) was obtained in the cleaning products section. The highest values of colony-forming units of bacteria and fungi were recorded in the bakery, and fruit and vegetable section. Penicillium sp. was the most prevalent fungal species, corresponding to 56.9% of the total colonies. In addition, other fungal species/sections with toxicological or pathogenic potential were detected (Aspergillus sections Aspergilli, Circumdati, Flavi, Mucor, and Fusarium sp.).
Description
H&TRC authors gratefully acknowledge the FCT/MCTES national support through the UIDP/05608/2020 and UIDB/05608/2020.
Keywords
Indoor air Air quality PM(10) VOC Bioburden Supermarket FCT_UIDP/05608/2020 FCT_UIDB/05608/2020
Citation
Furst L, Cipoli Y, Galindo N, Yubero E, Viegas C, Pena P, et al. Comprehensive analysis of particulate matter, gaseous pollutants, and microbiological contamination in an international chain supermarket. Environ Pollut. 2024;363(Pt 2):125236.
Publisher
Elsevier