DNA damage, serum metabolomic alteration and carcinogenic risk associated with low-level air pollution

The objective – to study the dynamic changes for the health risk of the population of the industrial center in accordance with the state of atmospheric air pollution with carcinogenic compounds. The assessment of the state of atmospheric air pollution was carried out by us based on the results of physicochemical analysis of samples taken in places attached to the locations of stationary posts of state monitoring. The concentration of identified substances was determined by conventional methods: spectral-luminescent and gas chromatographic. Heavy metal concentrations were determined using data from the Central Geophysical Observatory of the Ministry of Emergency Situations. The calculation of the inhalation load of chemical carcinogens and the risks associated with them (non-carcinogenic and carcinogenic) was carried out in accordance with domestic guidelines. The assessment of dynamic changes in the nature of atmospheric air pollution with a complex of carcinogenic substances was made 5 of them are constantly recorded at levels exceeding hygienic standards. When compared with the reference concentrations, all compounds are characterized by high coefficients, indicating the likelihood of their effect on the body's immune system, respiratory organs, malformations, etc. A high individual carcinogenic risk of the effect of chromium VI and nitrosamines was determined. A total carcinogenic risk is formed at levels of 2.5 – 3.9×10-3, which should be considered as high; this requires development and implementation of preventive measures. On the territory of the industrial center, a high level of air pollution with increased carcinogenic and non-carcinogenic risk is stably registered.

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RELATIONSHIP BETWEEN MAXIMUM PERMISSIBLE CONCENTRATIONS AND LEVEL OF HEALTH RISK FOR AIR POLLUTANTS

Hygiene and Sanitation ◽

10.18821/0016-9900-2017-96-5-442-445 ◽

2019 ◽

Vol 96 (5) ◽

pp. 442-445 ◽

Cited By ~ 1

Author(s):

V. V. Suchkov ◽

E. A. Semaeva

Keyword(s):

Air Pollution ◽

Health Risk ◽

Hexavalent Chromium ◽

Reference Range ◽

Pollution Index ◽

Ambient Air ◽

Carcinogenic Risk ◽

Daily Maximum ◽

The Third ◽

The City

There was executed the complex assessment of air pollution in the city Novokuibyshevsk in 2014. There were outlined basic chemicals exceeding hygienic standards, as well as causing both carcinogenic and non-carcinogenic health risk. Average concentrations of pollutants were shown to fail to exceed the average daily maximum permissible concentration, and on the basis of this air pollution index in the city of Novokuibyshevsk was the low in 2014. However, air pollution in the city of Novokuibyshevsk decreased not due to the reduction of the concentration of priority pollutants, but as a result of the revision of the admissible values for formaldehyde concentrations. Individual carcinogenic risks to the health of children under 18 years according to hexavalent chromium, benzene and formaldehyde exceeded the border of maximum permissible risk, and were attributed to the third reference range of risk values in accordance with the R 2.1.10.1920-04. The carcinogenic risk to the health of adults and the population of the city of Novokuibyshevsk as a whole was in the third reference range boundaries only for hexavalent chromium. However, the overall carcinogenic risk for health of children aged up to 18 years amounted to 1.18∙10-3 and moved into a fourth reference range boundaries. The total index of danger with all substances, the content of which was monitored in the ambient air in the city of Novokuibyshevsk, accounted for 17.74 and also demanded measures to reduce air pollution in the near future.

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Induction of DNA damage by low level laser irradiation in Friend mouse erythroleukaemia cells

Mutation Research/Environmental Mutagenesis and Related Subjects ◽

10.1016/0165-1161(92)91121-7 ◽

1992 ◽

Vol 271 (2) ◽

pp. 131 ◽

Cited By ~ 4

Author(s):

V.J. McKelvey ◽

A.L. Keegan ◽

J.A. Allen

Keyword(s):

Dna Damage ◽

Laser Irradiation ◽

Low Level ◽

Low Level Laser ◽

Level Laser ◽

Low Level Laser Irradiation

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CLIMATOLOGY AND LOW-LEVEL AIR POLLUTION POTENTIAL FROM SHIPS IN THE HAMPTON ROADS

10.21236/ad0450975 ◽

1964 ◽

Author(s):

NAVY WEATHER RESEARCH FACILITY NORFOLKVA

Keyword(s):

Air Pollution ◽

Pollution Potential ◽

Hampton Roads ◽

Low Level

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Relationships between Low-Level Jet and Low Visibility Associated with Precipitation, Air Pollution, and Fog in Tianjin

Atmosphere ◽

10.3390/atmos11111197 ◽

2020 ◽

Vol 11 (11) ◽

pp. 1197

Author(s):

Tingting Ju ◽

Bingui Wu ◽

Zhaoyu Wang ◽

Jingle Liu ◽

Dehua Chen ◽

...

Keyword(s):

Air Pollution ◽

Water Vapor ◽

Air Masses ◽

Low Level ◽

Vapor Channel ◽

Low Visibility ◽

Low Level Jet ◽

Industrial Regions ◽

Statistical Results ◽

Pm2.5 Concentration

In this study, relationships between low-level jet (LLJ) and low visibility associated with precipitation, air pollution, and fog in Tianjin are investigated based on observational data from January to December, 2016. Statistical results show 55% of precipitation is accompanied by LLJ, and two causes responsible for the relatively high percentage are presented. The result of case analysis shows that some southwesterly LLJs are favorable for the formation of precipitation by transporting water vapor when the water vapor channel from the South China Sea or Bengal Bay to Bohai Rim region is established. Statistical results show 55% of pollution episodes (PEs) are accompanied by LLJs. When pollutions are observed in the southern industrial regions, nocturnal southwesterly LLJ, which can carry polluted air masses from polluted regions to Tianjin and induce turbulent mixing, can enhance surface PM2.5 concentration and is favorable for the formation of surface pollution at night. Nocturnal northerly or southeasterly LLJ leads to clear air masses mixing with polluted air masses and is favorable for increasing visibility. Contributions of southwesterly LLJs to the formation of fog and precipitation are similar, which both rely on establishing the water vapor channel despite occurrence heights of LLJs being different.

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