scholarly journals Summertime Spatial Variations in Atmospheric Particulate Matter and Its Chemical Components in Different Functional Areas of Xiamen, China

Atmosphere ◽  
2015 ◽  
Vol 6 (3) ◽  
pp. 234-254 ◽  
Author(s):  
Shuhui Zhao ◽  
Liqi Chen ◽  
Yanli Li ◽  
Zhenyu Xing ◽  
Ke Du
Keyword(s):  
Particulate Matter ◽  
Spatial Variations ◽  
Atmospheric Particulate Matter ◽  
Chemical Components ◽  
Atmospheric Particulate ◽  
Functional Areas

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).

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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