Isomerization and Degradation of Levoglucosan via the Photo-Fenton Process: Insights from Aqueous-Phase Experiments and Atmospheric Particulate Matter

2020 ◽  
Vol 54 (19) ◽  
pp. 11789-11797
Author(s):  
Chi Yang ◽  
Chunyan Zhang ◽  
Xiaosan Luo ◽  
Xiaoyan Liu ◽  
Fang Cao ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Aqueous Phase ◽  
Atmospheric Particulate Matter ◽  
Fenton Process ◽  
Atmospheric Particulate

Photochemical Aging of Atmospheric Particulate Matter in the Aqueous Phase

2021 ◽  
Author(s):  
Frank Leresche ◽  
Joseph R. Salazar ◽  
David J. Pfotenhauer ◽  
Michael P. Hannigan ◽  
Brian J. Majestic ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Aqueous Phase ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate ◽  
Photochemical Aging

scholarly journals Effects of urban atmospheric particulate matter on higher plants using Lycopersicon esculentum as model species

2021 ◽  
Vol 3 (9) ◽  
Author(s):  
Katalin Hubai ◽  
Nora Kováts ◽  
Gábor Teke
Keyword(s):  
Particulate Matter ◽  
Lycopersicon Esculentum ◽  
Protein Content ◽  
Higher Plants ◽  
Nutrient Content ◽  
Atmospheric Particulate Matter ◽  
Dose Effect ◽  
Atmospheric Particulate ◽  
Wide Range ◽  
Treatment Experiment

AbstractAtmospheric particulate matter (PM) is one of the major environmental concerns in Europe. A wide range of studies has proved the ecotoxic potential of atmospheric particles. PM exerts chemical stress on vegetation by its potentially toxic constituents; however, relatively few studies are available on assessing phytotoxic effects under laboratory conditions. In our study, aqueous extract of particulate matter was prepared and used for treatment. Experiment was following the procedure defined by the No. 227 OECD Guideline for the Testing of Chemicals: Terrestrial Plant Test. Tomato (Lycopersicon esculentum Mill.) plants were used; elucidated toxicity was assessed based on morphological and biochemical endpoints such as biomass, chlorophyll-a and chlorophyll-b, carotenoids, and protein content. Biomass reduction and protein content showed a clear dose–effect relationship; the biomass decreased in comparison with the control (100%) in all test groups (TG) at a steady rate (TG1: 87.73%; TG2: 71.77%; TG3: 67.01%; TG4: 63.63%). The tendency in protein concentrations compared to the control was TG1: 113.61%; TG2: 148.21% TG3: 160.52%; TG4: 157.31%. However, pigments showed a ‘Janus-faced’ effect: nutrient content of the sample caused slight increase at lower doses; actual toxicity became apparent only at higher doses (chlorophyll-a concentration decrease was 84.47% in TG4, chlorophyll-b was 77.17%, and finally, carotene showed 83.60% decrease in TG4).

scholarly journals Atmospheric particulate matter pollution over residential urban areas during COVID-19 quarantine

2021 ◽  
Vol 1056 (1) ◽  
pp. 012014
Author(s):  
R Ilieva ◽  
B Angelova ◽  
M Iliev ◽  
D Stoyanov ◽  
V Groudeva ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Urban Areas ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate ◽  
Particulate Matter Pollution

Polycyclic aromatic hydrocarbons in atmospheric particulate matter (PM10) at a Southwestern Europe coastal city: status, sources and health risk assessment

2021 ◽  
Author(s):  
Joel Sánchez-Piñero ◽  
Jorge Moreda-Piñeiro ◽  
Isabel Turnes-Carou ◽  
María Fernández-Amado ◽  
Soledad Muniategui-Lorenzo ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Particulate Matter ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Aromatic Hydrocarbons ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate ◽  
Coastal City ◽  
Polycyclic Aromatic

Metal(loid) bioaccessibility of atmospheric particulate matter from mine tailings at Zimapan, Mexico

2021 ◽  
Author(s):  
Jesús Eulises Corona Sánchez ◽  
Ma del Carmen Angeles González Chávez ◽  
Rogelio Carrillo González ◽  
Kirk Scheckel ◽  
Daniel Tapia Maruri ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Mine Tailings ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate
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