نتایج جستجو برای: chrysene

تعداد نتایج: 368  

2015
Erik Dybing Per E. Schwarze Per Nafstad Katarina Victorin Trevor M. Penning

Polycyclic aromatic hydrocarbons (PAHs), which are generated from the incomplete combustion of organic (carbonaceous) material, are ubiquitous contaminants in ambient air (IARC, 1983, 1984a, 1984b, 1985, 2010; WHO, 1998). Their occurrence in the air we breathe has been substantial during the past centuries due to emissions from industrial processes and energy production, motor vehicular traffic...

Journal: :Veterinarski glasnik 2022

Fish meat and fish products are usually considered as healthy foods, mostly because of their content unsaturated fatty acids, which have a beneficial effect on human health. On the Serbian market, shellfish commonly present fresh, frozen canned, but not regulating monitoring existence high levels different chemical hazards can lead to health problems. The aim paper is provide an overview contam...

2014
Nimisha Patel Arif Ali

Corresponding Author: Arif, A., () Gene Expression Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi-110025 Email: [email protected] P a te l e t a l. 2 0 1 4 J o u rn a l o f In n o v a ti v e B io lo g y hrysene is a colorless to white, crystalline solid. It is also known as benzo(a)phenanthrene. It is most often found as the gaseous by-product from the incomplete co...

Journal: :محیط شناسی 0
مریم حسناتی دانشگاه علوم و فنون دریایی خرمشهر ، کارشناس ارشد آلودگی دریا احمد سواری دانشگاه علوم و فنون دریایی خرمشهر، دانشیار اکوفیزیولوژی یدا نیک پور دانشگاه علوم و فنون دریایی خرمشهر، استادیار شیمی کمال غانمی دانشگاه علوم و فنون دریایی خرمشهر ، استادیار شیمی

the major sources of pahs are anthropogenic. these may be generated by pyrolytic and petrogenic processes. low molecular weight pahs come into the aquatic system through the accidentally leakage of oil spills. incomplete combustion at high temperature will release high molecular weight pahs by products of pyrolytic processes. the methods for assigning sources of pahs include paired isomeric rat...

2006
HANS L. FALK

INTRODUCTION The summation or additive effects of carcino genie agents have received much attention in ef forts made to understand the action of carcinogens and the events that occur in carcinogenesis (5, 21). Chemical carcinogens, tumor-producing viruses, radiant energy, and trauma have been tried in various combinations (46) . Some agents showed summation, others did not, and a third group sh...

2018
Marja I. Roslund Mira Grönroos Anna-Lea Rantalainen Ari Jumpponen Martin Romantschuk Anirudra Parajuli Heikki Hyöty Olli Laitinen Aki Sinkkonen

Background Polycyclic aromatic hydrocarbons (PAHs) accumulate in urban soils, and PAH contamination can change soil microbial community composition. Environmental microbiota is associated with human commensal microbiota, immune system and health. Therefore, studies investigating the degradation of PAHs, and the consequences of soil pollution on microbial communities in urban landscaping materia...

Journal: :Cancer research 1985
S Amin K Huie A A Melikian J M Leszczynska S S Hecht

We compared the metabolic activation in mouse skin of the weak carcinogen 6-methylchrysene, which lacks a bay region methyl group, and the strong carcinogen 5-methylchrysene, which has a bay region methyl group. Metabolites of 6-methyl-chrysene were prepared using liver homogenates and were identified by their spectral properties and by comparison to synthetic standards as dihydrodiols, hydroxy...

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