The most direct influence people's life from the air is its everyday quality, hence the API ( Air Pollution Index) is of considerable importance.

The total number of respiratory outpatients grow with the increase of air pollution index in winter in the area.

2该地区冬季呼吸道疾病的就诊人数与空气质量有关，呼吸系统疾病门诊患者总就诊人数随着空气污染指数增加而增多。

The Application of Set Pair Analysis on City Air Pollution Index Forecasting

集对分析在城市空气污染预报中的应用研究

Application of CAPPS in the numerical prediction operational system of multi-city air pollution index

CAPPS在国家气象中心多城市污染指数数值预报业务系统中的应用

We analyse the change of the air pollution index ( API) value as well as the number of days of different air quality according to the air quality reports released by the local environmental protection department in the corresponding period.

同期当地环境保护部门公布的空气质量报告，分析空气污染指数（API）的数值变化，出现不同空气质量的天数。

The results showed that with the main air pollution in China being coal dust, the comprehensive air pollution index of Shenyang was the highest, Dalian the lowest and Zhengzhou in the middle.

结果显示我国大气污染属煤烟型，污染的综合指数以沈阳最高，郑州次之，大连最低。

Regression analysis of air pollution index based on MODIS remote sensing and meteorological data

基于MODIS遥感和气象数据的API回归分析

Based on Shaoxing 2003~ 2005 air pollution monitor index, the present situation, the character and the cause of Shaoxing's air pollution were analyzed.

以2003～2005年绍兴大气污染的主要监测指标为依据，分析了绍兴城市大气污染的现状、特征及原因。

Environmental Protection Department: Air Pollution Index-Lists air pollution index readings from monitoring stations around Hong Kong.

环境保护部门: 空气污染索引 - 从在香港附近监视车站的表空气污染索引读物.

In accordant with general indices of air pollution in major domestic cities, TSP, SO2 concentration, energy structure and the acquirability of history records, present pollution status in Shenyang was compared with historical corresponding status and developmental and changing rules were deduced. 2.

结合我国主要城市的空气污染综合指数，燃煤指示污染物TSP、SO2浓度、能源结构以及历史资料的可获得性，调查比较沈阳市目前污染状况与历史污染状况，分析其发展变化规律。

ZHENGZHOU: Despite two-digit economic growth in the third quarter, both air and water pollution dropped for the first time thanks to intensified environmental protection efforts.

郑州：由于环保措施得力，尽管今年第三季度仍然实现了两位数的经济增长，空气和水污染指数却首次双双下跌。

The correlation of fine particles and API has an obvious correlation in different seasons, though the correlation of fine particles and API in spring is the worst.

不同季节大气细粒子与空气污染指数之间的相关关系显著，春季较其它三季的相关系数小一些；

In this study, mesoscale meteorological model, Eulerian model and air trajectory model simulation of the regional meteorological field and air pollutant transport market, combined with the key cities in 2008 Air Pollution Index ( API) information to verify the results of the simulation analysis.

本研究利用中尺度气象模式，欧拉模式和气流轨迹模式，模拟研究区域气象场及大气污染物输送场，结合2008年重点城市空气污染指数（API）资料对模拟结果进行验证分析。

Our analysis to state of dust-stormy weather in different area is in correspondence with real weather facts. The correlative analysis between sand-dust index and urban air pollution index indicated their affinity.

对上游沙区的沙尘指数与下游邻近城市空气污染指数所作的相关分析显示：二者间存在较为密切的关系。

Improvement of Air Pollution Parameter Mode

空气污染指数模式的改进

Along with the new standards, the country's existing Air Pollution Index will also be upgraded into the Air Quality Index. This will follow international practices to include ozone and carbon monoxide pollution levels as well as PM2.5.

新标准将目前我国采用的空气污染指数升级为空气质量指数，并依照国际惯例，将臭氧、一氧化碳、PM2.5都纳入评价体系。

The numbers of the days with the air pollution index attaining Grade II and better than Grade II is over 50% in 2001.

2001年全年空气污染指数Ⅱ级和好于Ⅱ级的天数达到50%以上。

Forecast of Air Pollution Index in One City Based on the Artificial Neural Net

基于神经网络中小城市空气污染指数预估器的设计

The concepts of API and air quality levels have been widely accepted by many countries and regions, but there are some differences because of different national air quality standards.

空气污染指数和级别概念已被很多国家或地区采用，但在具体级别限值和等级划分上因各国国家环境标准差异而有所不同。

This essay evaluates the present situation of air pollution in Fuxin city in 1996-2000 using air pollution index, analyzing the present situation, varying tendency and the reasons of pollution, and pointing out the primary pollutants and the secondary pollutants.

本文采用API空气污染指数法对阜新市1996-2000年大气污染状况进行了评价，分析了污染现状、污染变化的趋势和原因，指出了首要污染物和次要污染物。

This paper briefly introduced air quality forecasting with pollutants' index in Hong Kong.

介绍了香港空气污染指数预报的方法和所取得的良好社会效果。