Teachers and students attending schools potentially face a harsh environmental solar exposure risk on a daily basis. Solar ultraviolet radiation is a known carcinogen, yet the realities of exposure to the sun are not often detected until years or even decades later, until the development of a skin cancer or cancers are noticed. Each new school year brings with it the potential for summer sunbur...

In 1960, Donald Acheson made the seminal observation that the global distribution of multiple sclerosis (MS) may be related to available hours of sunshine; this observation was met with disbelief at the time. However, over the subsequent more than 50 years, it has become clear that he may well be right. The effect of sunlight exposure and subsequent vitamin D production (generated by photolysis...

Chlorinated pesticides can contain impurities of dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), and their precursors, as a result of various manufacturing processes and conditions. As precursor formation of PCDD/Fs can also be mediated by ultraviolet light (UV), this study investigated whether PCDD/Fs are formed when currently used pesticides are exposed to natural sunlight. Formulations contai...

Solar radiation sustains and affects all life forms on Earth. In recent years, the increase in environmental levels of solar-UV radiation due to depletion of the stratospheric ozone layer, as a result of anthropogenic emission of destructive chemicals, has highlighted serious issues of social concern. This becomes still more dramatic in tropical and subtropical regions, where the intensity of s...

ABSTR ACT: In a laboratory investigation, the effect of natural sunlight and UV light exposure on dissipation of fipronil insecticide from two soils (clay loam and sandy clay loam) and the effect of pH on the persistence of fipronil in aqueous medium were studied. Dissipation of fipronil insecticide under sunlight followed biphasic first order kinetics in both soils. The half-life of the insect...

A comparative study of vitamin D status, dietary intake, supplementation use and habitual sunlight exposure in South Asians Caucasians living Yorkshire (UK) – Pilot - Volume 81 Issue OCE5

Nuclear polyhedrosis viruses such as the one isolated from the celery looper, Anagrapha falcifera (Kirby) (AfMNPV), have the potential to be successful bioinsecticides if improved formulations can prevent rapid loss of insecticidal activity from environmental conditions such as sunlight and rainfall. We tested 16 spray-dried formulations of AfMNPV to determine the effect of different ingredient...