The Characteristics Of The Trace Gases Of Qingdao And The Relationship Between The Concentrations Of The Trace Gases With The Weather Systems

With the industrial and social development the increasing atmospheric environmental issues arouse worldwide attention. Study analysis showed that Qingdao atmospheric pollution emissions have changed little in the short term, however pollution gas concentrations are obvious. The change is attributed primarily by weather conditions in the atmospheric boundary layer and different weather systems mutual changing. To find the basic law of the pollution gas concentrations change, the author use the daily trace gases (CO, NO_x, O₃, SO₂) concentrations data from December 2003 to March 2006 to analyze trace gases concentrations change in the coastal commercial residential restrict of Qingdao. By analyzing the trace gases concentrations and the relationship between the meteorological factors in different seasons, author initially finds the higher degree weather factors associated with pollution gas concentrations. The correlation can be used as for reference in trace gases concentrations forecasting model for future research. Author chooses five representative weather systems (cold front, sand dust weather, fog, heavy precipitation, high temperature hot process, etc.) for the research of the correlation between the trace gases concentrations with the weather systems, by analyzing the MICAPS (Meteorological Information Comprehensive Analysis and Process System) data from December 2003 to March 2006 to summary the typical weather systems, analyzing the information of the weather systems (surface chart, upper level chart, as well as ground meteorological factors etc.) of Qingdao in this term in use MICAPS system. A representative weather cases in every typical weather system is been elected to be detailed analyzed of the process of meteorological factors and weather the trace gases concentrations changes to initially find the impact on the trace gases concentrations change by the typical weather systems. The main conclusions are as follows:First, the analysis found in the trace gases concentrations, SO₂ is the most serious pollution in Qigndao coastal commercial residential restrict. Nearly 30 percents daily average concentrations exceed national air quality standards for secondary value standards; the less serious pollution gas is NO_x, and CO, O₃ are the less pollution. The trace gases have significant season and day characteristic in the gas concentrations.Second, by relevant analysis author finds temperature and pressure are the best related meteorological factors with the trace gases. The correlation of O₃ and meteorological factors associated are contrary with the other three trace gases. Over the same period the correlation also shows clear season characteristics. In summer the most obvious meteorological factors correlated with the trace gases concentrations are temperature, dew point, total cloud cover, wind speed. The most notably related factors are visibility, wind speed, temperature in winter. By analyzing the relationship of SO₂ concentration with four major meteorological factors associated author finds...