Traffic areas

Thermal inversions make winter the most unfavorable season for clean air. Vast differences in air quality are found in the industrialized north, and the residential southwest regions. Particulate matter influences mainly the north, where industries, landfills, and the dried bed of Texcoco Lake are located. Sulfur oxides impinge primarily on the northeast and southwest. High carbon monoxide concentrations are found in heavy traffic areas such as the northwest. Ozone affects predominantly the southwest at any season. We have selected air quality records from data generated by stations registering the higher pollutant levels, as follows ... 

Most mechanical hazards in the laboratory can be avoided by good planning. There must be no obstructions in traffic areas, particularly those needed for rapid evacuation in case of emergency. Wide hallways may look like good parking places for movable equipment not currently in use. They may also seem convenient for storage of reagents and supplies that temporarily... 

Legend NH - near smelter (0.0 - 0.5 miles) and high traffic area. 

FH - further from smelter (0.5 - 1.0 miles of reference) and high traffic area. 

Deer mice, Peromyscus maniculatus From high density traffic area ... 

Stationary Fuel Cell Demonstration Project. In order to estimate the efficiency and identify the problems of commercialization of stationary PEFC, this project operates 31 stationary fuel cells in various sites such as residential areas, heavy traffic areas, and seaside areas. It will also evaluate various fuel types (i.e. natural gas, LP Gas and kerosene). The budget allocations for 2002-2003 total 1.8 billion the 2003 allocation is 1.3 billion. 

No-wear high-performance floors for high-traffic areas Heat-shrink films and tubing Curing of adhesives, coatings and inks... 

Tong et al. (2000) used a five-stage sampler and collected and measured organochlorine pesticides in airborne particles with different sizes (>7.0pm-7.0-3.3 pm, 3.3 2.0pm-2.0-1.1 pm, and <1.1 pm). Samples collected in residential and traffic areas in Huhehaote during the winter and summer of 1996 were compared. The results showed that organochlorine pesticides (HCH and / ,/r -DDE) were found on airborne particles of all sizes. The mean concentration of HCH was 0.502 ngm-3 in... 

Menichini, E., Monfredini, F., Merli, F., 1999. The temporalvariability of the profile of carcinogen ic polycyclic aromatic hydrocarbons in urban air A study in a medium traffic area in Rome, 1993-1998. Atmos. Environ. 33, 3739-3750. 

Those segments of the general population with potentially high exposure to acrolein from exogenic sources include people who come in frequent or prolonged contact with tobacco or marijuana smoke, people who are occupationally exposed, and people who live or work near dense traffic areas, in smoggy areas (e.g., Los Angeles), or downwind from stationary point sources. Patients... 

Traffic officers Inhalation 0.045-0.06 ppm NR Slight increase in bronchitis and colds compared with officers in low traffic area. Speizer and Ferris 1973... 

To flourish and bear well, citrus trees require a site with excellent drainage and full sun. Prune to remove dead wood, to keep trees in bounds, and to thin out centers where growth is too dense. Citrus flowers attract bees don t plant them in high-traffic areas. Citrus trees bear fruit without cross-pollination. 

Electrical wiring, is it (1) replaced if frayed or cracked, (2) not placed under rugs, over nails or in high traffic areas. Are the outlets (1) not overloaded, (2) cool to the touch, not hot, and (3) not exposed, that is, have cover plates. 

To perform the source apportionment the Chemical Mass Balance model applies the emission profiles from traffic and solvent use to the NMVOCs concentrations measmed at the different receptors point in Wuppertal. Measurements were performed down-wind from the city centre, in areas close to the factories and workshop producing or using solvents, in dense traffic areas and in residential areas. The characteristics of the receptor points are presented in Table 2. 

No-wear high-performance floors for high-traffic areas... 

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