Experimental simulation of stratospheric ozone reactions with chloroalkane organic pollutants

2020 ◽  
Author(s):  
Serguei V. Savilov ◽  
Natalia E. Strokova ◽  
Anton S. Ivanov ◽  
Igor I. Morozov
Keyword(s):  
Organic Pollutants ◽  
Stratospheric Ozone ◽  
Experimental Simulation ◽  
Ozone Reactions

Neutrophil Myeloperoxidase Destruction by Ultraviolet Irradiation

1988 ◽  
Vol 46 ◽  
pp. 138-139
Author(s):  
J. Hanker ◽  
B. Giammara ◽  
G. Strauss
Keyword(s):  
Uv Radiation ◽  
Myeloid Leukemia ◽  
Stratospheric Ozone ◽  
Psoriasis Patient ◽  
Whole Body ◽  
Human Neutrophils ◽  
Cupric Nitrate ◽  
The Earth ◽  
Routine Handling ◽  
Uvb Phototherapy

Only a fraction of the UV radiation emitted by the sun reaches the earth; most of the UVB (290-320nm) is eliminated by stratospheric ozone. There is increasing concern, however, that man-made chemicals are damaging this ozone layer. Although the effects of UV on DNA or as a carcinogen are widely known, preleukemia and acute myeloid leukemia (AML) have only rarely been reported in psoriasis patients treated with 8-methoxypsoralen and UV (PUVA). It was therefore of interest to study the effects of UV on the myeloperoxidase (MP) activity of human neutrophils. The peroxidase activity of enriched leukocyte preparations on coverslips was shown cytochemically with a diaminobenzidine medium and cupric nitrate intensification.Control samples (Figs. 1,4,5) of human bloods that were not specifically exposed to UV radiation or light except during routine handling were compared with samples which had been exposed in one of several different ways. One preparation (Fig. 2) was from a psoriasis patient who had received whole-body UVB phototherapy repeatedly.

SST's stratospheric ozone, and skin cancer

1975 ◽  
Author(s):  
S. F. Singer
Keyword(s):  
Skin Cancer ◽  
Stratospheric Ozone

EXPERIMENTAL SIMULATION OF A HELIUM COOLING SYSTEM FOR A SUPERCONDUCTING GENERATOR

1984 ◽  
Vol 45 (C1) ◽  
pp. C1-729-C1-732 ◽  
Author(s):  
L. Intichar ◽  
C. Schnapper
Keyword(s):  
Cooling System ◽  
Experimental Simulation

Geographic variation of persistent organic pollutants in Hawaiian monk seals Monachus schauinslandi in the main Hawaiian Islands

2014 ◽  
Vol 24 (3) ◽  
pp. 249-262 ◽  
Author(s):  
J Lopez ◽  
KD Hyrenbach ◽  
C Littnan ◽  
GM Ylitalo
Keyword(s):  
Geographic Variation ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Hawaiian Islands ◽  
Monachus Schauinslandi ◽  
Monk Seals

Evaluating Risk After a Hazardous Waste Treatment Plant Released Persistent Organic Pollutants: Part 3, Aboriginal Health Risk and Impact

2018 ◽  
Vol 2 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Tee L. Guidotti
Keyword(s):  
Health Risk ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Aboriginal Health ◽  
Treatment Center ◽  
Hazardous Waste Treatment ◽  
Waste Treatment Plant ◽  
Health Canada

On 16 October 1996, a malfunction at the Swan Hills Special Waste Treatment Center (SHSWTC) in Alberta, Canada, released an undetermined quantity of persistent organic pollutants (POPs) into the atmosphere, including polychlorinated biphenyls, dioxins, and furans. The circumstances of exposure are detailed in Part 1, Background and Policy Issues. An ecologically based, staged health risk assessment was conducted in two parts with two levels of government as sponsors. The first, called the Swan Hills Study, is described in Part 2. A subsequent evaluation, described here in Part 3, was undertaken by Health Canada and focused exclusively on Aboriginal residents in three communities living near the lake, downwind, and downstream of the SHSWTC of the area. It was designed to isolate effects on members living a more traditional Aboriginal lifestyle. Aboriginal communities place great cultural emphasis on access to traditional lands and derive both cultural and health benefits from “country foods” such as venison (deer meat) and local fish. The suspicion of contamination of traditional lands and the food supply made risk management exceptionally difficult in this situation. The conclusion of both the Swan Hills and Lesser Slave Lake studies was that although POPs had entered the ecosystem, no effect could be demonstrated on human exposure or health outcome attributable to the incident. However, the value of this case study is in the detail of the process, not the ultimate dimensions of risk. The findings of the Lesser Slave Lake Study have not been published previously and are incomplete.

Low doses of persistent organic pollutants (PFOA and PCB153) increase the tumor aggressiveness of hormone-dependent cancer cells

2019 ◽  
Author(s):  
Aurelie Charazac ◽  
Charlotte Hinault ◽  
Frederic Bost ◽  
Stephan Clavel ◽  
Nicolas Chevalier
Keyword(s):  
Cancer Cells ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Low Doses ◽  
Tumor Aggressiveness
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