This paper reviews the current research state abroad and at home on studies on the effect of atmospheric aerosol on actinic flux and ozone,and presents an observed event in Guangzhou.

Based on analyses of domestic and abroad research status and observational cases,the study on the effects of aerosols on surface actinic flux and ozone formation has been made by using radiative model and chemical model.

Through analyzing illuminance of light radiant flux of equivalent optical system when the object is in three different position, we get the conclusion that shift of object distance can not change the light radiant flux on the photoelectric element.

Characteristics of radiation flux of coniferous and broadleaved mixed forest in low subtropical China.;

Finally, the radiation flux of hard x-ray MCP collimator is compared to that of common collimator.

Observational radiation flux data(including solar radiation,reflected radiation from sea surface,atmospheric radiation and long-waved radiation from the sea) at sea surface of XiSha sea area of the South China Sea from May to June 2000 and some regular data such as the quantity of clouds,surface sea temperature,atmospheric temperature,water vapor and so on are studied and analyzed in this article.