雅安市近地面空气负(氧)离子状况初探

本文基于2010～2011年雅安市气象局进行的“雅安市空气负(氧)离子观测研究”资料,对雅安市近地面空气负(氧)离子状况进行了初步分析.主要结论为:(1)雅安市具有优异的空气负(氧)离子生态资源,城区空气负(氧)离子浓度等级大多数情况都在6级(负离子浓度≥2100个/cm3)以上,近郊的负(氧)离子浓度大多数情况都超过6级,较高时可接近60000个/cm3,风景区的负(氧)离子浓度大多数情况都远远超过6级,较高时≥60000个/cm3,是名符其实的“天府之肺”、“中国的绿色宝石”和“中国生态气候城市”.(2)雅安市境内,空气负(氧)离子浓度的日变化规律通常为7时左右最大,15时左右最低；空气负(氧)离子浓度和天气、相对湿度有较密切的关系,通常的规律为:降雨后的清晨、雷雨后,空气负(氧)离子浓度明显增加；空气负(氧)离子浓度和相对湿度成正相关.(3)和国内已有研究资料的地区比较,雅安市空气负(氧)离子浓度水平在国内为最高地区之一.

Initial Studies on Negative(Oxygen)Ions Status in Surface Air in Ya'an

Based on the data of negative oxygen ions observation and study in Ya’an from 2010 to 2011,which is from Ya’an Meteorological Bureau,this paper studied the negative(oxygen) ions status in surface air in Ya’an.The main results are as follows: 1) There are excellent ecological resources of air negative(oxygen) ions in Ya’an.Air(oxygen) negative ion concentration levels in most cases are at level 6 or above in urban areas.That is air(oxygen) negative ions concentration ≥2100/cm3 in urban areas.On the outskirts of air negative(oxygen) ions concentration is more than level 6 in most of time,reach to 60000/cm3.In the scenic areas,air negative(oxygen) ions concentration is far more than level 6 in most of time,the higher ≥60000/cm3.Ya’an is a veritable lung of Tianfu,and is a veritable green gem of China,and is a veritable Chinese ecological climate city.2)Around 7 a.m.,air(oxygen) negative ions concentration usually is the largest,and usually at 3p.m.,it is to a minimum in Ya’an.Air negative(oxygen) ions concentration and weather,relative humidity have a close relationship.The rule is: usually in the morning after the rain and the thunderstorm,air negative(oxygen) ions concentration increases obviously,air negative(oxygen) ions concentration and relative humidity are in positive correlation.3) Compared with other areas with related research,Ya’an has the highest negative(oxygen) ions concentration level in China.