Analysing and Interpreting Air Monitoring Data WHO Offset Publication No. 51
İÇİNDEKİLERCONTENTSContributors and reviewers . . . . . . . . . . . 4 Foreword . . . . . . . . . . . . . . . . . . . . 5 Introduction . . . . . . . . . . . . . . . . 6 1 Summarizing air quality data . . . . . . . . . . 8 1.1 Introduction . . . . . . . . . . . . . . . 8 1.2 Presenting raw data . . . . . . . . . . . . 8 1.3 Statistical summaries . . . . . . . . . . . 10 1.4 Geographical summaries . . . . . . . . . 17 2 Air quality data analysis . .. . . . . . . . . 21 2.1 Introduction . . . . .. . . . . . . . . . 21 2.2 Limitations of incomplete data sets . . . . . 21 2.3 Air pollution data distribution . . . . . . . . . 24 2.4 Time series .. . . . . . . . . . . . . 33 2.5 Analysis as a function of meteorological conditions 39 2.6 Correlation and regression techniquie. . . . . . 42 3 Interpretation of air monitoring data - an example . . 45 3.1 Introduction . . . . . . . . .. . . . . . . . . 45 3.2 Data summary . . . . . . . . . . . . . . . . . 45 3.3 Frequency distribution analysis . . . . . . . . . . 47 3.4 Trends . . . . . . . . . . . . . . . . . . . 50 3.5 Comparison with standards or guides. . . . . . . . 51 3.6 Calculation of required air pollution reductions . . 51 References . . . . . . . . . . . . . . . . . 53 Annex 1. Values of Fisher's . . . . . . . . . . . . 56 Annex 2. Model log-probability paper . . . . . . . . . . 57 Annex 3. Ratio of maxima to arithmetic mean concentrations for various averaging times . . . . . . . . 58 Annex 4. Critical values of the Spearman rank correlation coefficient . .59  |
