Biomonitoring of metallic air pollutants in unique habitations of the Brahmaputra Valley using moss species—Atrichum angustatum: spatiotemporal deposition patterns and sources

2021 ◽  
Author(s):  
Sharfaa Hussain ◽  
Raza R. Hoque
Keyword(s):  
Air Pollutants ◽  
Moss Species ◽  
Deposition Patterns ◽  
Brahmaputra Valley

Some Effects of Oxidant Air Pollutants (Ozone and Peroxyacetyl Nitrate) on the Ultrastructure of Leaf Tissues

1972 ◽  
Vol 30 ◽  
pp. 360-361
Author(s):  
William W. Thomson ◽  
Elizabeth S. Swanson
Keyword(s):  
Air Pollutants ◽  
Electron Microscopic Examination ◽  
Peroxyacetyl Nitrate ◽  
Electron Microscopic ◽  
Growth Physiology ◽  
Physiology And Biochemistry ◽  
Entire Plant ◽  
Leaf Tissues ◽  
Gaseous Hydrocarbons ◽  
The Individual

The oxidant air pollutants, ozone and peroxyacetyl nitrate, are produced in the atmosphere through the interaction of light with nitrogen oxides and gaseous hydrocarbons. These oxidants are phytotoxicants and are known to deleteriously affect plant growth, physiology, and biochemistry. In many instances they induce changes which lead to the death of cells, tissues, organs, and frequently the entire plant. The most obvious damage and biochemical changes are generally observed with leaves.Electron microscopic examination of leaves from bean (Phaseolus vulgaris L.) tobacco (Nicotiana tabacum L.) and cotton (Gossipyum hirsutum L.) fumigated for .5 to 2 hours with 0.3 -1 ppm of the individual oxidants revealed that changes in the ultrastructure of the cells occurred in a sequential fashion with time following the fumigation period. Although occasional cells showed severe damage immediately after fumigation, the most obvious change was an enhanced clarity of the cell membranes.

Freeze-dried dispersions for automated SEM analysis of individual submicron airborne particulates

1992 ◽  
Vol 50 (1) ◽  
pp. 408-409
Author(s):  
Karen A. Katrinak ◽  
David W. Brekke ◽  
John P. Hurley
Keyword(s):  
Air Pollutants ◽  
Size Range ◽  
Sem Analysis ◽  
Individual Particle ◽  
Chemical Data ◽  
Particle Analysis ◽  
Bulk Analysis ◽  
Airborne Particulates ◽  
Freeze Dried ◽  
Individual Particle Analysis

Individual-particle analysis is well established as an alternative to bulk analysis of airborne particulates. It yields size and chemical data on a particle-by-particle basis, information that is critical in predicting the behavior of air pollutants. Individual-particle analysis is especially important for particles with diameter < 1 μm, because particles in this size range have a disproportionately large effect on atmospheric visibility and health.

1735-P: Oral Exposure to Air Pollutants Mediates Diabetes via Innate Immunity

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1735-P
Author(s):  
ANGELA J.T. BOSCH ◽  
THERESA V. ROHM ◽  
SHEFAA ALASFOOR ◽  
ZORA BAUMANN ◽  
CLAUDIA CAVELTI-WEDER
Keyword(s):  
Innate Immunity ◽  
Air Pollutants ◽  
Oral Exposure

Study of airborne bacteria and their relation to air pollutants

2014 ◽  
Author(s):  
W. Smets ◽  
S. Moretti ◽  
S. Lebeer
Keyword(s):  
Air Pollutants ◽  
Airborne Bacteria
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