Current situation of air environmental quality and change trend analysis in Sanmenxia city;

The content and change trend of metal Hgin soils -vegetables in Guangzhou;

Precipitation characteristic and analysis on the change trend in Tonglu County of Zhejiang Province;

Analysis on the content and variation trend of heavy metal in themarine organisms in Daya Bay;

Study on the Mortality Rate and Variation Trend from 1991 to 2005 of Huantai Residents;

Based on the data of chemical oxygen demand(COD)in Bohai Bay during 1995—2005t,he variation trend of the COD in different seasons(May,Aug and Oct)and years was analyzed.

An analysis of water environment quality in Jinjiang River System and its trend;

The Trend of Environmental Quality of Jiangsu in Ten Years;

The Trend of Metabolic Syndrome from 2000 to 2004—Qingdao Port Health Study;

To analyze the pollution condition of SO-2 in the atmosphere from the changing trend of the speed of sulfation during recent 5 years of Yinchuan City;

Analysis of chemical elements in kernel oil in Sapium sebiferum Roxb,and research into their changing trend;

An Analysis on Physical Quality Changing Trend of Students in Primary and Middle Schools of Han Nationality in Fujian Province During the Ninth Five-Year Period;

The change tendency of foundation base bearing capacity;

Through comprehensive analysis of monitoring results of water quality of Huang River,Da Hei river system and Hui river system over ten years,the change tendency is exposed,and the problems in each river pollution section which are urgent to be resolved are put forward.

The change tendency and factors affecting atmopheric environmental quality are analysised in this paper in Nanhai district of Foshan city,based on atmosphere environmental monitoring data and the state of social economic development from 1993 to 2005.