生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2013年
2期
298-303
,共6页
空气负离子浓度%城市环境%空气质量%空气清洁度%评价指数
空氣負離子濃度%城市環境%空氣質量%空氣清潔度%評價指數
공기부리자농도%성시배경%공기질량%공기청길도%평개지수
negative air anion (NAI) concentration%urban environments%air quality%air cleanness degree%assessment index
选取安徽合肥和广东深圳为研究对象,收集其空气正、负离子浓度、风速、空气温度、相对湿度、材料和植物负离子浓度等数据并分析.结果显示,空气负离子浓度与风速、水、植物、相对湿度等有较为密切的关系,其中最主要的影响是水,其次是风,最小的是气温;并根据对城市室内外环境的实测研究,利用空气离子单极系数及安倍空气离子评价指数对城市室内外环境的空气质量进行初步评价,结果表明,从城市室内环境到城市居住区环境、城镇、自然生态环境空气清洁度逐步变好.城市居住区环境中,以低层高密度住区的空气质量最好,空气负离子浓度为289个/cm3,空气质量达到1.7,空气清洁度为最清洁;而高层居住区最差,空气负离子浓度为139个/cm3,空气质量达到0.08,空气清洁度为重污染.城市室内环境中以自然通风和有新风进入的房间空气质量最好,同时放置负离子发生器对室内空气质量也有显著提高.因此,建议在城市规划建设中采取有效措施以提高空气负离子浓度的分布,从而改善城市生态环境以创造舒适宜居的空气环境,并把空气负离子浓度列为室内环境的监测和评价指标,为今后城乡建设规划、城市林业规划和环境能源保护提供科学依据和设计思路.
選取安徽閤肥和廣東深圳為研究對象,收集其空氣正、負離子濃度、風速、空氣溫度、相對濕度、材料和植物負離子濃度等數據併分析.結果顯示,空氣負離子濃度與風速、水、植物、相對濕度等有較為密切的關繫,其中最主要的影響是水,其次是風,最小的是氣溫;併根據對城市室內外環境的實測研究,利用空氣離子單極繫數及安倍空氣離子評價指數對城市室內外環境的空氣質量進行初步評價,結果錶明,從城市室內環境到城市居住區環境、城鎮、自然生態環境空氣清潔度逐步變好.城市居住區環境中,以低層高密度住區的空氣質量最好,空氣負離子濃度為289箇/cm3,空氣質量達到1.7,空氣清潔度為最清潔;而高層居住區最差,空氣負離子濃度為139箇/cm3,空氣質量達到0.08,空氣清潔度為重汙染.城市室內環境中以自然通風和有新風進入的房間空氣質量最好,同時放置負離子髮生器對室內空氣質量也有顯著提高.因此,建議在城市規劃建設中採取有效措施以提高空氣負離子濃度的分佈,從而改善城市生態環境以創造舒適宜居的空氣環境,併把空氣負離子濃度列為室內環境的鑑測和評價指標,為今後城鄉建設規劃、城市林業規劃和環境能源保護提供科學依據和設計思路.
선취안휘합비화엄동심수위연구대상,수집기공기정、부리자농도、풍속、공기온도、상대습도、재료화식물부리자농도등수거병분석.결과현시,공기부리자농도여풍속、수、식물、상대습도등유교위밀절적관계,기중최주요적영향시수,기차시풍,최소적시기온;병근거대성시실내외배경적실측연구,이용공기리자단겁계수급안배공기리자평개지수대성시실내외배경적공기질량진행초보평개,결과표명,종성시실내배경도성시거주구배경、성진、자연생태배경공기청길도축보변호.성시거주구배경중,이저층고밀도주구적공기질량최호,공기부리자농도위289개/cm3,공기질량체도1.7,공기청길도위최청길;이고층거주구최차,공기부리자농도위139개/cm3,공기질량체도0.08,공기청길도위중오염.성시실내배경중이자연통풍화유신풍진입적방간공기질량최호,동시방치부리자발생기대실내공기질량야유현저제고.인차,건의재성시규화건설중채취유효조시이제고공기부리자농도적분포,종이개선성시생태배경이창조서괄의거적공기배경,병파공기부리자농도렬위실내배경적감측화평개지표,위금후성향건설규화、성시임업규화화배경능원보호제공과학의거화설계사로.
In this study, we conducted test in Hefei of Anhui province and Shenzhen of Guangdong province in China, where we chose different typical sites to measure and research. The measurements included negative air ion concentration, positive air icon concentration, wind speed, air temperature, relative humidity and negative air icon concentration in materials and plants. The results showed that negative air icon concentration had a closer relation with wind speed, water, plants and air humidity than other factors, the most important factor was the water, followed by wind, and the minimal was air temperature.Based on the measurement and research of indoor and outdoor of urban environments, air quality was assessed using ion polarity ratio and air ion assessment index (CI). The results show that air cleanness degree increases gradually from urban indoor environment to urban residential environment to country and natural environment. In urban residential environment, the air quality of low high-density residential environment is the best, the NAI concentration reaches to 289 N/cm3 at average value, and its air quality reaches to 1.7 for the cleanest; but high-level residential environment is the worst, the air quality of low high-density residential environment is the best, the NAI concentration reaches to 139 N/cm3 at average value, and its air quality reaches to 0.08 for threshold, maybe heavy pollution. In urban indoor environments, the air quality with natural ventilation and fresh air into the room is the best, and placed the negative ion generator has improved indoor air quality significantly. So the article suggests taking effective measures to increase the distribution of NAI concentration in urban planning and construction in order to improve the urban ecological environment to create a comfortable air environment, and taking the negative air ion concentration as a monitoring and evaluation indicators of the indoor environment, so as to provide a scientific basis and design concept for urban planning and construction, urban forestry planning, energy planning and environmental protection in the future.
