Search results for "PM10"
showing 10 items of 21 documents
ATR–FTIR Spectral Analysis and Soluble Components of PM10 And PM2.5 Particulate Matter over the Urban Area of Palermo (Italy) during Normal Days and …
2019
Several epidemiological studies have shown a close relationship between the mass of particulate matter (PM) and its effects on human health. This study reports the identification of inorganic and organic components by attenuated total reflectance-Fourier-transform infrared spectroscopy (ATR-FTIR) analysis in PM10 and PM2.5 filters collected from three air quality monitoring stations in the city of Palermo (Sicily, Italy) during non-Saharan dust events and Saharan events. It also provides information on the abundance and types of water-soluble species. ATR-FTIR analysis identified sulfate, ammonium, nitrate, and carbonate matter characterized by vibrational frequencies at 603, 615, 670, and …
Impact on Air Quality of the COVID-19 Lockdown in the Urban Area of Palermo (Italy).
2020
At the end of 2019, the first cases of coronavirus disease (COVID-19) were reported in Wuhan, China. Thereafter, the number of infected people increased rapidly, and the outbreak turned into a national crisis, with infected individuals all over the country. The COVID-19 global pandemic produced extreme changes in human behavior that affected air quality. Human mobility and production activities decreased significantly, and many regions recorded significant reductions in air pollution. The goal of our investigation was to evaluate the impact of the COVID-19 lockdown on the concentrations of the main air pollutants in the urban area of Palermo (Italy). In this study, the trends in the average…
Robustness of air quality indicators: a study of PM10 levels in Scotland
2008
Study on ambient concentrations of PM10, PM10-2.5, PM2.5 and gaseous pollutants. Trace elements and chemical speciation of atmospheric particulates
2010
Abstract This study provides the first comprehensive report on mass concentrations of particulate matter of various sizes, inorganic and organic gas concentrations monitored at three sampling sites in the city of Palermo (Sicily, Italy). It also provides information on the water-soluble species and trace elements. A total of 2054 PM10 (1333) and PM2.5 (721) daily measurements were collected from November 2006 to February 2008. The highest mass concentrations were observed at the urban stations, average values being about two times higher than those at the suburban (control) site. Time variations in PM10 and also PM10–2.5 were observed at the urban stations, the highest concentrations being …
Mass levels, crustal component and trace elements in PM10 in Palermo, Italy.
2007
Abstract Results concerning the levels and elemental compositions of daily PM 10 samples collected at four air quality monitoring sites in Palermo (Italy) are presented. The highest mean value of PM 10 concentrations (46 μg m −3 , with a peak value of 158 μg m −3 ) was recorded at the Di Blasi urban station, and the lowest at Boccadifalco station (25 μg m −3 ), considered as a sub-urban background station. Seventeen elements (Al, As, Ba, Co, Cr, Cu, Fe, Li, Mn, Mo, Ni, Pb, Sb, Sr, U, V, Zn) were measured by ICP-MS. Al and Fe showed the highest concentrations, indicating the significant contribution of soil and resuspended mineral particles to atmospheric PM 10 . Ba, Cr, Cu, Mn, Mo, Ni, Pb, …
Analysis of airborne particulate matter: application of Fourier Transform Infrared (FT-IR) spectroscopy and selected geochemical techniques
2010
Constraining the ship contribution to the aerosol of the central Mediterranean
2017
Particulate matter with aerodynamic diameters lower than 10 µm, (PM10) aerosol samples were collected during summer 2013 within the framework of the Chemistry and Aerosol Mediterranean Experiment (ChArMEx) at two sites located north (Capo Granitola) and south (Lampedusa Island), respectively, of the main Mediterranean shipping route in the Straight of Sicily. The PM10 samples were collected with 12 h time resolutions at both sites. Selected metals, main anions, cations and elemental and organic carbon were determined. The evolution of soluble V and Ni concentrations (typical markers of heavy fuel oil combustion) was related to meteorology and ship traffic intensity in the Straight of Sicily…
An informal procedure to detect outliers in multilevel models
2008
Cieto daļiņu atmosfēras piesārņojuma mainība autotransporta ietekmes rezultātā Jēkabpilī
2018
Bakalaura darba ietvaros izvērtēts autotransporta radītais gaisa piesārņojums Jēkabpils pilsētā. Pētījums veikts, galvenokārt, lai novērtētu tranzīta radīto piesārņojumu un tā izplatību apbūvētās teritorijās. Darba mērķis ir izvērtēt gaisa piesārņojuma no autoceļiem galveno vides parametru transporta radīto cieto daļiņu (PM) koncentrāciju. Emisiju apjoma novērtēšanai izmantot manuāli satiksmes intensitātes mērījumi, vizuāli uzskaitot autotransporta līdzekļus. Iegūtie dati statistiski apstrādāti, izveidojot raksturīgos diennakts transporta plūsmu profilus dažādām automašīnu klasēm. Darbā izmantoti Latvijas Republikas Centrālās statistikas pārvaldes dati par transportlīdzekļu skaitu, autotran…
Atmosfēras piesārņojuma dozimetriskais novērtējums
2022
Bakalaura darba “Atmosfēras piesārņojuma dozimetriskais novērtējums” ir apkopota zinātniskā literatūra par atmosfēras piesārņojumu pilsētvidē, tā ietekmi uz cilvēku veselību, meteoroloģisko parametru ietekmi uz gaisa kvalitāti, maršruta izvēles nozīmi, lai mazinātu uzņemto gaisa piesārņojuma daudzumu. Darba praktiskajā daļā veikti mērījumi piesārņotājiem PM2.5, PM10, PM1 un gaistošajiem organiskajiem savienojumiem laika periodā no 03.10.2021. līdz 14.04.2022. dažādās nedēļas dienās un ekspozīcijas laikos. Mērījumi veikti, izmantojot personificētu gaisa piesārņojuma mērītāju dozimetru. Iegūtie piesārņojošo vielu koncentrāciju mērījumi analizēti, izmantojot korelāciju analīzi un dispersijas a…