Analysis with Monitoring Data

In this section the air quality prediction models are evaluated based on the daily averaged PMio concentrations recorded at the ambient air quality monitoring station in Macao between 2001 and 2005. The station is located at the Taipa Grande Hill, which has an altitude of 159.2 m above sea level. Therefore, the measurements are representative of the general ambient air quality of Macao. To evaluate the performance of each model, some well-known performance indices are utilized and they are the root-mean-square error  

Bayesian Methods for Structural Dynamics and Civil Engineering 

In order to further compare the performance of the TVAREX and ANN models in capturing the PM 10 pollution episodes, the probability of detection POD) is utilized  

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Compounding these ambiguities are recent observations we have made monitoring sialylation, by two different methods, of a recombinant immunoadhesion molecule, GPl-IgG [29], over the course of a CHO cell culture under high productivity conditions in which sodium butyrate is added as an inducer of protein synthesis (Figure 2). A 10 1 bioreactor culture of CHO cells secreting GPl-IgG was established and samples of the culture were withdrawn every 24 hr. The recombinant protein was isolated, the titers of the protein quantified, and the sialic acid content determined by chemical analysis. With these data the sialic acid levels of the newly synthesized protein could also be calculated for each 24 hr interval. 

Combinations of several types of probes can improve the information concerning corrosion or the system. Using only probes that provide corrosion-rate data cannot lead to as complete an analysis of the process and its effect on the equipment as with monitoring probes, which provide additional information. 

The contractor at Site H had established area and personnel sampling consistent with HAZWOPER requirements. A photo ionization detector (PID) and a real-time aerosol monitor (RAM) were used on a daily basis to screen for potentially hazardous levels of contaminants. On a weekly basis, personal air samples were collected and submitted for laboratory analysis. PPE requirements, however, were often not based on this data because the oversight agency had established inflexible minimum PPE requirements. The audit team found many of the PPE requirements on Site H to be excessive in light of site monitoring data and hazard determinations. 

Onishi K., Ueyama T., et al. Application of crosswell seismic tomography using difference analysis with data normalization to monitor C02 flooding in an aquifer. 2009 International Journal of Greenhouse Gas Control 3 311-321. 

Carbon turnover in production fields can be determined, using non-isotopic techniques, by combining historical soil samples, current soil samples, and whole field yield monitor data. Sensitivity analysis of such data shows that the amount of above-ground biomass that could be harvested decreases with root to shoot ratio (Table 8.1). For example, if root biomass is ignored, analysis suggests that only 20-30% of the above-ground biomass can be harvested, whereas if the root to shoot ratio is 1.0, then between 40% and 70% of the residue could be harvested. 

Acid rain monitoring data in North America have been gathered by Environment Canada and stored in the National Atmospheric Chemistry (NatChem) Database, details of which can be found at www.airquality.tor.ec.gc.ca/natchem. Analysis of the deposition chemistry data has confirmed that wet sulfate deposition did indeed decline in concert with the decline in SO2 emissions in both eastern Canada and the... 

Very little recent information on concentrations of endrin in water could be found in the available literature. Unlike DDT, chlordane, aldrin/dieldrin, and a variety of other chlorinated pesticides, endrin was never used extensively in urban areas. This is reflected in the results from EPA s Nationwide Urban Runoff Program, which showed no detections in 86 high-flow water samples from 51 urbanized watersheds from 19 cities (Cole et al. 1984). Analysis of EPA STORET monitoring information from ambient surface water showed a significant percentage of detections for endrin (32% of 8,789 samples), but most were near the detection limits, with a national median concentration of 0.001 ppb (Staples et al. 1985). A similar analysis of STORET data for endrin aldehyde showed that this compound was not found in 770 samples of ambient surface water. More recently, endrin was not detected (detection limit 49 ng/L [0.045 ppb]) in surface water from the Yakima River Basin, Washington (Foster et al. 1993). However, in... 

Biochemical assays have been employed to measure changes in enzyme levels (e.g., aspartate aminotransferase, lactic dehydrogenase) as an indication of exposure to 1,2-dibromoethane in humans and animals (Albano et al. 1984 Botti et al. 1989 Letz et al. 1984 Van lersel et al. 1988). Decreased sperm counts per ejaculate and increased numbers of sperm with abnormal morphology have also been identified in workers following exposure to 1,2-dibromoethane (Ratcliffe et al. 1987 Wyrobek 1984). In general, these techniques are nonspecific for 1,2-dibromoethane exposure (see Chapter 2). There are no data to indicate whether a biomarker, if available, would be preferred over chemical analysis for monitoring exposure to 1,2-dibromoethane. 

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