Progress in several studying fields of atmospheric environment

The progress m several studying fields of atmospheric environment is introduced, such as 'Europe tracer experiment plan', the concept of 'agree index', the international cooperation program for validation of model to predict environment transfer of pollutants held by IAEA, uncertainty of diffusion parameters and its effect on diffusion factor, observing and analying of land and sea breezes, the dry and wet deposition on different surfaces; resuspention parameter and it's measuring value, the atmospmospheric diffusion in accident assessment, the weather sampling technology, the model to calculate the accident washout factor and effective diffusion parameters. (author)