Source identification and mitigation of indoor air pollution using monitoring data – Current trends

Environmental Technology & Innovation, Год журнала: 2024, Номер 33, С. 103534 - 103534

Опубликована: Янв. 8, 2024

Poor indoor air quality is responsible for around 3.2 million premature deaths each year. Accurately identifying pollution (IAP) sources a quintessential step towards mitigating pollutants and associated health risks. Traditionally, receptor models have been used however, recently, new source identification methods risen, which use real-time continuous monitoring data. In this review, the state-of-art in mitigation trends using IAP are critically analysed. Thirty-two research articles were reviewed with emphasis on along monitoring: environments monitored, pollutants, methods, found. Receptor factor analysis still most prevalent method. Meanwhile, of has rapidly increasing. Even low-cost sensors (LCS) started to be sources. This review proposes method implementing identification. It also hypothesises novel hybrid approach both traditional samplers can simultaneously preventive as well reactive measures. The LCS supplement proposed, owing their ubiquity. However, technologies need advance further assure reliability.

Язык: Английский

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Non-target scanning of organics from cooking emissions using comprehensive two-dimensional gas chromatography-mass spectrometer (GC×GC-MS)

Applied Geochemistry, Год журнала: 2023, Номер 151, С. 105601 - 105601

Опубликована: Фев. 16, 2023

Язык: Английский

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Evaluation of the cancer risk from PAHs by inhalation: Are current methods fit for purpose?

Environment International, Год журнала: 2023, Номер 177, С. 107991 - 107991

Опубликована: Май 23, 2023

There is ample evidence from occupational studies that exposure to a mixture of Polycyclic Aromatic Hydrocarbons (PAHs) causally associated with an increased incidence lung cancers. In both atmospheres and ambient air, PAHs are present as many compounds, but the composition in air differs atmosphere, varies time space air. Estimates cancer risk for PAH mixtures based upon unit risks which derive extrapolation data or animal model data, case WHO use one compound, benzo[a]pyrene marker entire mixture, irrespective composition. The U.S. EPA has used study inhalation alone, there have been number rankings relative carcinogenic potency other calculate frequently incorrectly by adding estimated individual applying total "B[a]P equivalent" risk, already applies mixture. Such often solely historic US group 16 compounds do not include apparently more potent carcinogens. no human PAHs, conflicting additivity carcinogenicity mixtures. This paper finds large divergences between estimates deriving methods, well considerable sensitivity composition, assumed potencies. Of two approach appears likely provide reliable estimates, recently proposed mixture-based approaches using vitro toxicity may offer some advantages.

Язык: Английский

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BPDE exposure promotes trophoblast cell pyroptosis and induces miscarriage by up-regulating lnc-HZ14/ZBP1/NLRP3 axis

Journal of Hazardous Materials, Год журнала: 2023, Номер 455, С. 131543 - 131543

Опубликована: Май 6, 2023

Язык: Английский

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Polycyclic Aromatic Hydrocarbons (PAHs) in household dust: The association between PAHs, Cancer Risk and Sick Building Syndrome

Building and Environment, Год журнала: 2022, Номер 229, С. 109966 - 109966

Опубликована: Дек. 31, 2022

Язык: Английский

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Higher Toxicity of Gaseous Organics Relative to Particulate Matters Emitted from Typical Cooking Processes

Environmental Science & Technology, Год журнала: 2023, Номер 57(44), С. 17022 - 17031

Опубликована: Окт. 24, 2023

Cooking emission is known to be a significant anthropogenic source of air pollution in urban areas, but its toxicities are still unclear. This study addressed the fine particulate matter (PM2.5) and gaseous organics by combining chemical fingerprinting analysis with cellular assessments. The cytotoxicity reactive oxygen species activity were ∼1.9 ∼8.3 times higher than those PM2.5, respectively. Moreover, these values per unit mass PM2.5 ∼7.1 ∼15.7 collected from ambient Shanghai. total oleic acid equivalent quantities for carcinogenic toxic respiratory effects organics, as estimated using predictive models based on quantitative structure-property relationships, 1686 ± 803 430 176 μg/mg Both predicted consistent assessment. These health risks primarily attributed high relative content equivalency factor organic compounds present gas phase, including 7,9-di-tert-butyl-1-oxaspiro(4,5)deca-6,9-diene-2,8-dione, 2-ethylhexanoic acid, 2-phenoxyethoxybenzene. Furthermore, fatty acids identified prominent markers cooking-related emissions. obtained results highlight importance control measures cooking-emitted reduce personal exposure risks.

Язык: Английский

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Removal of environmental pollutants using biochar: current status and emerging opportunities

Environmental Geochemistry and Health, Год журнала: 2024, Номер 46(10)

Опубликована: Авг. 21, 2024

Язык: Английский

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Review of Polycyclic Aromatic Hydrocarbons Pollution Characteristics and Carcinogenic Risk Assessment in Global Cooking Environments

Environmental Pollution, Год журнала: 2024, Номер 361, С. 124816 - 124816

Опубликована: Авг. 24, 2024

Язык: Английский

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Elucidating ozone and PM_2.5 pollution in the Fenwei Plain reveals the co-benefits of controlling precursor gas emissions in winter haze

Atmospheric chemistry and physics, Год журнала: 2023, Номер 23(6), С. 3595 - 3607

Опубликована: Март 23, 2023

Abstract. The Fenwei Plain, home to 50 million people in central China, is one of the most polluted regions China. In 2018, Plain was designated as three key for “Blue Sky Protection Campaign”, along with Beijing–Tianjin–Hebei (BTH) and Yangtze River Delta (YRD) regions. However, compared BTH YRD, our understanding current status air pollution limited partly due a lack detailed analysis transformation from precursor gases secondary products including organic aerosol (SOA) ozone. Through 7 years (2015–2021) surface monitoring pollutants Xi'an, largest city we show that roughly two-thirds days exceeded either PM2.5 or O3 level-1 quality standard, highlighting severity pollution. Moreover, an increase winter haze also revealed, constantly elevated reactive oxygenated volatile compounds (OVOCs), particular formaldehyde, ozone formation potential over µg m−3, combination reduced NO2. abrupt decrease NO2, observed during lockdown 2020, provided real-world evidence control measures, targeting only NOx (70 % on average), were insufficient reduce because OVOCs remained high compound (VOC)-limited regime. Model simulation results showed NO2 reduction 20 %–70 %, self-reaction rate between peroxy radicals, pathway SOA formation, intensified by up 75 while further VOCs > %. Therefore, synergic can be achieved through more aggressive their gases. This study elucidates revealing general trend increasing pollution, i.e., haze. Controlling gas emissions anticipated curb both which will benefit not just but other

Язык: Английский

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Investigating industrial PAH air pollution in relation to population exposure in major countries: A scoring approach

Journal of Environmental Management, Год журнала: 2023, Номер 338, С. 117801 - 117801

Опубликована: Март 28, 2023

Язык: Английский

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