On the basis of the construction of index system, by the factor analysis and the model of coupled coordination degree, the coupled coordination degrees in 2005 and 2010 between development of urban land intensive use system and social economic system are studied in 17 ground level cities of Shandong province. The first results showed that f (x) and f (y) in 2010 were higher than in 2005, which indicated that the degree of urban land intensive use and development level of the social economy were improved. The second results was that the coupled coordination degree of two systems was higher than in 2005, but if f (x) and f (y) were smaller, the gap in the capacity of comprehensive coordination was larger, the coupled coordination degrees were the smaller. So comprehensive development levels in single system were improved, which could not promote positive development between two systems.

To detect the sanitary status of pure water at different times in the campus, including to detect the total bacterial count, the coliforms, mould and yeast, this document explained and demonstrated the sanitary status of the barreled pure water through water dispensers. By the experiment, the results showed that the drinking fountain caused the pure water pollution, so the unheated pure water flowing though the drinking fountain were not qualified. And the longer the pure water samples were cultured, the more the aerobic bacterial count of water samples significantly exceeded the standard. After these samples were cultured for five days, all samples had be uncountale.

It is a hazard to human health that urban atmospheric dustfall has increased year by year. The winter atmospheric dustfall in Linyi was studied in the paper, atmospheric dustfall carrying out heavy metal was determined by ICP-AES, and the sources of metal elements in the atmospheric dustfall was analyzed by enrichment factor method. The results showed that Cd, Zn, Cu, Pb and Hg elements in the atmospheric dustfall were significantly affected by man-made factors, and that As, Cr, Mn elements in the atmospheric dustfall were mainly derived from the crust. Meanwhile the results the sources of Zn, Cu, Pb and Hg in dustfall is closely related to coal and oil combustions, but that Cd elements in dust were deeply affected by soil