Rapid quantitative assessment of visible injury to vegetation and visual amenity effects of fluoride air pollution

Intermittently, Singapore suffers from severe air pollution in periods of intense forest and peatland fires on neighboring South-Asian islands. A recent American Economic Review article modeled the causal relationships between fire intensity in Indonesia and air pollution (PSI) in Singapore, and between PSI and health clinic visits in Singapore. We find serious flaws in the quantitative assessment of these relationships. Attempts are made to repair these using the same classic methodology and data, but also by alternative methods requiring less speculative assumptions. Although actually more detailed data are required, there are some results produced which seem more credible.

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METHODICAL QUESTIONS OF THE STUDY OF THE INFLUENCE OF AIR POLLUTION ON THE POPULATION’S HEALTH

Hygiene and Sanitation ◽

10.18821/0016-9900-2017-96-10-987-989 ◽

2019 ◽

Vol 96 (10) ◽

pp. 987-989

Author(s):

Zulfya F. Sabirova ◽

O. V. Budarina ◽

M. V. Vinokurov ◽

N. F. Fattachova

Keyword(s):

Air Pollution ◽

Quantitative Assessment ◽

Statistical Processing ◽

The State ◽

Informational Content ◽

Chemical Pollution ◽

Pollution Indices ◽

Atmospheric Air ◽

Oil Processing ◽

The Impact

On the basis of the analysis and an assessment of publications devoted to the impact of the pollution of atmospheric air on the population’s health and results of own researches in the field of oil processing, petrochemistry, chemistry, metallurgy insufficient informational content and validity of evidential base of “exposition - answer” dependence is established. Methodical questions allowing interpret correctly results of a quantitative assessment of the influence of chemical pollution on the population’s health are considered. The characteristic of informational content, choice criteria of air pollution indices and the state of the population’s health, methods of an assessment and statistical processing of results are given. Advantages of calculated models to study and the description of air pollution are shown.

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Analysis of the parameters of springtail communities in the foothill forest ecosystems of the Sochi Black sea region

Monitoring systems of environment ◽

10.33075/2220-5861-2020-4-65-74 ◽

2020 ◽

pp. 65-74

Author(s):

V.G. Scherbina ◽

Keyword(s):

Air Pollution ◽

Species Composition ◽

Black Sea ◽

Forest Ecosystem ◽

Quantitative Assessment ◽

Forest Ecosystems ◽

Black Sea Region ◽

Qualitative And Quantitative ◽

Piedmont Zone ◽

Average Abundance

A qualitative and quantitative assessment of springtail communities in six main forest ecosystems in the piedmont zone of the Sochi Black Sea region is presented . The studies were carried out at 13 sites located in a suburban forest area, without the influence of recreation and pronounced technogenic air pollution. The species composition, the level of dominance and the average abundance of springtails for seven field seasons are determined. Differences in the structure of springtail communities and their evenness depending on the type of forest ecosystem are established. The state of forest ecosystems is assessed by the degree of evenness.

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An Sem Study of Injury Symptoms in Parmotrema Reticulatum Treated With Paraquat or Growing in Sulphur Dioxide-Polluted Air

The Lichenologist ◽

10.1006/lich.1993.1006 ◽

1993 ◽

Vol 25 (4) ◽

pp. 423-433 ◽

Cited By ~ 9

Author(s):

P. Modenesi

Keyword(s):

Air Pollution ◽

X Ray Diffraction ◽

Visible Injury ◽

Free Radical Production ◽

X Ray ◽

Radical Production ◽

Sem Study ◽

Visible Symptom ◽

Thallus Surface ◽

Crystalline Deposition

AbstractThe effect of Paraquat, a herbicide known to stimulate oxygen-centred free-radical production in green plants, is compared with visible injury symptoms due to air pollution in Parmotrema reticulatum, an SO2-sensitive lichen species. This is in order to verify the hypothesized SO2 toxicity mechanism via the generation of free radicals. A new SEM-visible symptom is described: the production of heavy crystalline deposition on the thallus surface in SO2-stressed and Paraquat-treated specimens. The examination of the crystalline deposition by X-ray diffraction, correlated with SEM studies, showed that it is calcium oxalate (weddellite).

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