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TEMPORAL AND SPATIAL ANALYSIS OF AIR POLLUTION PROCESSES IN ISRAEL

Ronit Nirel(1) Daniel Pfeffermann(1) Uri Dayan(2)

(1)Department of Statistics
(2)Department of Geography

October 1998

ABSTRACT

The Israeli air-pollution monitoring network will include, in a few years time, about 100 stations. Many of these stations already report air pollution measurements in real-time to computerized centers. The objective of this study is to develop and apply statistical procedures for the analysis of this steadily growing database which will provide insight into the air pollution processes
in Israel and help with the management of air quality.
The analyses and conclusions are based on fuel consumption data, which
determine the emissions, and on meteorological and synoptic considerations, which determine the dispersion conditions in the lower atmosphere.

The three-year study is financed by the Chief Scientist of the Ministry of the Environment. The first year focused on data quality-control procedures and descriptive analyses of half-hourly measurements for the period 1987-1997 in the Ashdod Hevel-Yavne area. The second year's report concern (a) temporal analysis of trend and seasonality using nonparametric (X11) and parametric (AUTOREG) models; (b) relating the observed variability of pollutant's concentration to dispersion patterns, determined by meteorological input; and (c) identifying sources of pollution, e.g. areal sources or elevated sources, using regression trees.

[ To Publications ]

                Map of the Ashdod-Hevel Yavne Area

                Plumes from the Ashdod Power Plant

                Plumes from the Refineries

 

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Last modified: 28/02/01