Environmental variability surveys

Karably, L. and K. Babcock. Effects of Environmental Variables on Soil Gas Surveys In Superfund 87, The 8th National Conference... 

Fig. 4 Redundance analysis (RDA) on phytoplankton communities collected during the surveys of 2005-2006 and their relationship with the environmental variables, such as the Total Phosphorus (PTOT), Water Flow (WATFL), Total Suspended Solids (TSS), ammonia concentration (NH4), nitrate concentration (N03), and conductivity (COND). Acronyms were also used for phytoplankton taxa representation...

Exploratory mapping-surveying Establish ranges of environmental variables Investigate spatial-temporal variability Check for surprises Easy sampling-analysis, mobility... 

Attitude is a predisposition to act in a certain way. It is the state of readiness that influences a person to act in a given manner (Rahman et al. 1999). Therefore, attitude surveys in agriculture could lead to a more adequate explanation and prediction of farmers economic behavior and have been used on conservation and environmentally related issues focusing on the influence of attitude variables as predictors of conservation behavior (Dimara and Skuras 1999). Dimara and Skuras (1999) concluded from their research that a significant relationship was found between behavior and the goals and intentions of farmers. This relationship is even stronger when statements on attitudes, social norms, and perceived behavioral control are included (Bergevoet et al. 2004)... 

In addition, existing databases where environmental media and biomonitoring data are collected (such as NHEXAS) could be further studied to estimate exposure and explore the relationships between biomarker concentration and exposure. That information can be used to apportion chemical intake into the different exposure pathways to assist in interpreting population variability, to calculate exposure by combining environmental measurements with survey information to verify estimates of exposure from pharmacokinetic models, and to identify research needs on the basis of discrepancies between estimates obtained from the exposure-pathways analysis and biomonitoring results. 

Societal weighting factors (Fig. 6.5) account for the importance society attaches to the different forms of ecological impact. They are based on public opinion surveys. The relevance factors are based on actual data and indicate the relative importance of individual environmental impacts (e.g., emissions to air) for a particular eco-efficiency analysis. For each specific impact variable, first the impact due to the investigated product or process is divided by the total environmental impact of this variable in the country in question. These numbers are generally very small but the relation between them yields the necessary weighting and thus, the relevance... 

Assuming that DOC is identified as an important factor regulating variability in diatom community composition among survey lakes, the second step is to develop statistical descriptions of the mean (optimum) and variance (tolerance) in environmental conditions that regulate species abundance. In the case of UVR reconstructions, the responses of modern diatoms to a DOC gradient are... 

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