PM10 oxidative potential at a Central Mediterranean Site: Association with chemical composition and meteorological parameters

Pietrogrande, Maria Chiara; Perrone, Maria Rita; Manarini, Francesco; Romano, Salvatore; Udisti, Roberto; Becagli, Silvia

doi:10.1016/j.atmosenv.2018.06.013

Cited by 58 publications

(55 citation statements)

References 70 publications

(113 reference statements)

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“…Several studies across Italy reported that the volume-normalized OP AA data are widely correlated with both soluble and total fractions of several elements, i.e., Mn, Fe, Cu, Cr, Zn, Ni, Al, K, Mg, Ca, Cd, Ba, and Rb. This has been found for ambient PM 10 particles at Trento [23] and Lecce [34], for PM 2.5 at Bologna [18] and Lecce [24] and in general studies including Turin [19,31], Milan, and Florence [17,32]. Correlations with the same metals were also observed for OP DTT responses for PM 10 and PM 2.5 samples at Trento [23], Lecce [24,27,37] and Bologna [18], for TSP at Milan [28] and for size aggregated PM 3 , PM 3-7 , PM 7 particles at Milan [16].…”

Section: Association With Metalssupporting

confidence: 63%

“…Major elements (Al, Si, Fe, Ca, Cr, and Ti) were determined using X-ray fluorescence (XRF, e.g., [34]). Trace elements-such as B, Cd, Ce, Co, Cs, Cu, La, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sn, Sr, Tl, V, Zn, and Zr-were determined using inductively coupled plasma mass spectroscopy (ICP-MS), [23,24].…”

Section: Analytical Methodologies For Chemical Characterizationmentioning

confidence: 99%

“…Trace elements-such as B, Cd, Ce, Co, Cs, Cu, La, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sn, Sr, Tl, V, Zn, and Zr-were determined using inductively coupled plasma mass spectroscopy (ICP-MS), [23,24]. Ion Chromatography was used to quantify cations (Na + [23,34]. Also sugars and anidrosugars, were determined by high-performance anion exchange chromatography combined with pulsed amperometry detection [24].…”

Section: Analytical Methodologies For Chemical Characterizationmentioning

confidence: 99%

“…In general, organic carbon (OC) and elemental carbon (EC) concentrations were quantified using a thermo-optical analyser (Sunset Laboratory OC/EC analysers) [18,30], and water-soluble organic carbon (WSOC) was analyzed with a total carbon analyzer instrument [23]. From these values, the contribution of prima (POC) and secondary organic species (SOC) to OC was estimated [24,34]. Table 1.…”

Section: Analytical Methodologies For Chemical Characterizationmentioning

confidence: 99%

“…Oxidative properties of PM 10 samples were investigated in Trentino region (Alpine valley in Northern Italy) in April-May 2016, at an urban background and industrial sites, in order to characterize the impact of local emission sources, including a Zn coating factory [23]. OP DTT and OP AA of PM 10 particles were measured also in Lecce, an urban background site in Southern Italy over a whole year, from December 2014 to October 2015, so that it was possible to investigate seasonal trend (autumn-winter, AW, vs. spring-summer, SS) [34]. In the same campaign, also PM 2.5 granulometric fraction was simultaneously collected and analyzed to investigate the variation of the OP DTT and OP AA activity in relation with the particle size and chemical composition [24].…”

Section: Study Overviewmentioning

confidence: 99%

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Review of PM Oxidative Potential Measured with Acellular Assays in Urban and Rural Sites across Italy

2019

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This work is an overview of the oxidative potential (OP) values up to date measured in Italy, with the aim to provide a picture of the spatial and seasonal variability of OP in the various geographical areas across Italy. The summarized works used the common acellular assays-based dithiothreitol (OP DTT ), ascorbic acid (OP AA ), glutathione (OP GSH ), and 2 ,7 -dichlorodfluorescein (OP DCFH ) assays. The paper describes the association of OP responses with PM chemical composition, the sensitivity of various acellular OP assays to PM components and emission sources, and PM size distribution of the measured OP values. Our synthesis indicates that crustal and transition metals (e.g., Fe, Ni, Cu, Cr, Mn, Zn, and V), secondary ions and carbonaceous components (elemental carbon, EC, organic carbon, OC and water soluble carbon, WSOC) show significant correlations with OP across different urban and rural areas and size ranges. These chemical species are mainly associated with various PM sources, including residual/fuel oil combustion, traffic emissions, and secondary organic aerosol formation. Although the OP assays are sensitive to the same redox-active species, they differ in the association with PM chemical components. The DDT assay is mainly sensitive to the organic compounds that are mostly accumulated in the fine PM fraction, i.e., tracers of burning sources, and redox active organics associated with other markers of photochemical aging. In contrast, OP AA and OP GSH were mostly responsive to metals, mainly those related to non-exhaust traffic emissions (Cu, Zn, Cr, Fe, Ni, Mn, Sn, Cd, Pb), that are mainly accumulated in the coarse PM. Among the investigated sites, our synthesis shows larger OP values in Trentino region and the Po Valley, that may be explained by the high density of anthropogenic sources, and the orographic and meteorological characteristics, that favor the pollutants accumulation and aerosol photo-oxidative aging. ). The acellular version of the 2 ,7 -dichlorodfluorescein (DCFH) assay uses the enzymatic production of the fluorescent probe largely used for the evaluation of oxidative stress in living cells.The present work summarizes the PM oxidative properties up to date measured in Italy using OP acellular assays, with the aim of giving a general insight of PM OP across the Italian territory, that has not been reported yet, in spite of the increasing number of OP measurements carried out in Europe [6,[19][20][21][22]. In addition, the study reviews the association described in previous studies between OP from different assays with several inorganic ad organic components, that effect PM oxidative properties, i.e., metals, ions, and carbonaceous components. The aim is to give a picture of the spatial and seasonal variability of different contributions to OP in the various geographical areas across Italy. The relevance of such an investigation is based on the large variability in the chemical composition of different PM size fractions in various locations across Italy, as a consequence of the stron...

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Section: Association With Metalssupporting

confidence: 63%

Section: Analytical Methodologies For Chemical Characterizationmentioning

confidence: 99%

Section: Analytical Methodologies For Chemical Characterizationmentioning

confidence: 99%

Section: Analytical Methodologies For Chemical Characterizationmentioning

confidence: 99%

Section: Study Overviewmentioning

confidence: 99%

See 3 more Smart Citations

Review of PM Oxidative Potential Measured with Acellular Assays in Urban and Rural Sites across Italy

2019

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Oxidative potential of the inhalation bioaccessible fraction of PM10 and bioaccessible concentrations of polycyclic aromatic hydrocarbons and metal(oid)s in PM10

Novo–Quiza,

Sánchez–Piñero,

Moreda–Piñeiro

et al. 2024

Environ Sci Pollut Res

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Atmospheric particulate matter (PM) has been related to numerous adverse health effects in humans. Nowadays, it is believed that one of the possible mechanisms of toxicity could be the oxidative stress, which involves the development of reactive oxygen species (ROS). Different assays have been proposed to characterize oxidative stress, such as dithiothreitol (DTT) and ascorbic acid (AA) acellular assays (OPDTT and OPAA), as a metric more relevant than PM mass measurement for PM toxicity. This study evaluates the OP of the bioaccessible fraction of 65 PM10 samples collected at an Atlantic Coastal European urban site using DTT and AA assays. A physiologically based extraction (PBET) using Gamble’s solution (GS) as a simulated lung fluid (SLF) was used for the assessment of the bioaccessible fraction of PM10. The use of the bioaccessible fraction, instead of the fraction assessed using conventional phosphate buffer and ultrasounds assisted extraction (UAE), was compared for OP assessment. Correlations between OPDTT and OPAA, as well as total and bioaccessible concentrations of polycyclic aromatic hydrocarbons (PAHs) and metal(oid)s, were investigated to explore the association between those compounds and OP. A correlation was found between both OP (OPDTT and OPAA) and total and bioaccessible concentrations of PAHs and several metal(oid)s such as As, Bi, Cd, Cu, Ni, and V. Additionally, OPDTT was found to be related to the level of K+.

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Sources of PM10 ionic species in the South-West Mediterranean (Algeria)

Lemou,

Rabhi,

Ladji

et al. 2024

Environ Sci Pollut Res

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PM10 oxidative potential at a Central Mediterranean Site: Association with chemical composition and meteorological parameters

Cited by 58 publications

References 70 publications

Review of PM Oxidative Potential Measured with Acellular Assays in Urban and Rural Sites across Italy

Review of PM Oxidative Potential Measured with Acellular Assays in Urban and Rural Sites across Italy

Oxidative potential of the inhalation bioaccessible fraction of PM10 and bioaccessible concentrations of polycyclic aromatic hydrocarbons and metal(oid)s in PM10

Sources of PM10 ionic species in the South-West Mediterranean (Algeria)

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