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471.
Schaub M Emberson L Büker P Kräuchi N 《Environmental pollution (Barking, Essex : 1987)》2007,145(3):636-643
The objective of this study was to establish whether EU and UN-ECE/ICP-Forests monitoring data (i) provide the variables necessary to apply the flux-based modeling methods and (ii) meet the quality criteria necessary to apply the flux-based critical level concept. Application of this model has been possible using environmental data collected from the EU and UN-ECE/ICP-Forests monitoring network in Switzerland and Italy for 2000-2002. The test for data completeness and plausibility resulted in 6 out of a possible total of 20 Fagus sylvatica L. plots being identified as suitable from Switzerland, Italy, Spain, and France. The results show that the collected data allow the identification of different spatial and temporal areas and periods as having higher risk to ozone than those identified using the AOT40 approach. However, it was also apparent that the quality and completeness of the available data may severely limit a complete risk assessment across Europe. 相似文献
472.
Smith LM Didonato EM Harwell LC Nestlerode JA Summers JK 《Environmental monitoring and assessment》2007,128(1-3):511-524
Using the approach established by EPA's Environmental Monitoring and Assessment Program (EMAP), a shoreline monitoring survey
was conducted in August and September 1999, encompassing the Florida Panhandle from Perdido Key, Florida to Port St. Joe,
Florida. The objective of this survey was to demonstrate the use of a probabilistic survey for monitoring and estimating the
condition of swimmable beach areas. Thirty stations were sampled using a probabilistic sampling design. Hydrographic data
were collected in addition to samples for water chemistry. Bacterial indicators, enterococci and fecal coliforms, were enumerated
from the water according to the EPA Beaches Environmental Assessment Closure and Health (BEACH) Program and Florida state
guidelines. Additional criteria for site condition included the presence or absence of primary and secondary dunes, anthropogenic
debris and vegetation. Based on EMAP evaluation guidelines and Florida state criteria, a baseline assessment of the condition
of the Gulf of Mexico beach resources surveyed is presented. 相似文献