Ozone classifications

Ozone Classifications. The CAA sets a new classification structure for ozone nonattainment areas based on the severity of the nonattainment problem. For each area classified under this section, the attainment date is as expeditious as practicable but no later than the date in the following table. The classification scheme is as follows ... 

TABLE 25-7 Ozone Nonattainment Area Classifications and Associated Requirements... 

Nonattainment area classification One-hour ozone concentration design value, ppm Attainment date Major source threshold level, tons VOGs/yr Offset ratio for new/modified sources... 

Title I allows the EPA to define the boundaries of "nonattainment" areas for ozone, CO, and PMjg. Emission standards for these areas will be based on a new set of "nonattainment categories." EPA has established a classification system for ozone design values (goals) and attainment deadlines. Table 24-2 lists these parameters. 

If a nonattainment area is classified as serious, based on ambient ozone measurements, then the state must modify its SIP to bring the area into compliance in 9 years. The CAAA90 also specify the size and, therefore, the number of sources subject to regulatory control as a function of nonattainment classification. Table 24-3 illustrates these requirements for ozone nonattainment classifications of extreme and severe the state must include... 

Classification and Attainment Dates for Ozone Nonattainment Areas... 

Classification Ozone design values Attainment deadline (from enactment)... 

As mentioned, nonattainment areas will have to implement different control measures, depending on their classification. Marginal areas, for example, are the closest to meeting the standard. They will be required to conduct an inventory of their ozone-causing emissions and institute a permit program. Nonattainment areas with more serious air quality problems must implement various control measures. The worse the air quality, the more controls areas will have to implement. 

Choose a specific metropolitan area and determine its classification as an ozone nonattainment area. Find the alternative deadline and allowable emissions of NO and VOC com-... 

See Figure 11-23 for a diagram of refrigerant safety group classification. The manufacture and use of some specific refrigerants have been canceled and/or restricted due to the detrimental effect on the ozone layer. 

Informed debate and decisions on such important matters as the depletion of the ozone layer, acid rain and the quality of waterways all depend on the data provided by analytical chemists. Forensic evidence also often depends on chemical measurements. National and international trade are critically dependent on analytical results. Chemical composition is often the basis for the definition of the nature of goods and tariff classification. In all of these areas not only is it important to get the right answer but it is essential that the user of the results is confident and assured that the data are truly representative of the sample and that the results are defendable, traceable and mutually acceptable by all laboratories. 

GLC see Gas-liquid chromatography Globally harmonized system (GHS), chemicals classification, 745-6 Global Ozone Monitoring Experiment (GOME), 605... 

A. TROPOSPHERIC OZONE AND ASSOCIATED PHOTOCHEMICAL OXIDANTS TABLE 16.1 Classification of Organics in the RCAM and RADM2 Mechanism0 889... 

Table II. Weighted Classification of Treatment Lines After Ozonation for Each Month (Factor Analysis of TA98 Data)...

By using the factor analysis method, the mutagenicity data were applied only on water after disinfection. Then, comparisons were made between treatment lines (Figure 4). By using the same interpretation (i.e., assigning weights of 3, 2, or 1) as that used for the ozone and GAC treatment, the conclusions based on ordered classifications of treatment lines for each month and for the year are the following Treatment line 1 is the best line of the pilot plant and yields a 92 relative ideal complete treatment line, treatment line 2 is 66 , and treatment line 4 is 41 (Table VII). 

No statistically significant effect from chlorination was observed. A classification of treatment line efficiencies on mutagenicity was defined The best treatment line involves an ozone-GAC combination and a low ozone dose (1 ppm of 03, 10 min of contact time). 

STREET NAMES Angel dust, ozone, wack, rocket fuel, embalming fluid, fry, formaldehyde, wet, water, amp, hog DRUG CLASSIFICATIONS Schedule II, hallucinogen... 

TABLE 22-8 The 8-h Ozone NAAQS Classifications and Attainment Dates ... 

Area classification 8-h ozone concentration, ppm Attainment date ... 

These classifications and attainment dates apply to areas previously designated nonattainment under the 1-h ozone NAAQS. 

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