Samband mellan luftföroreningar och klimatfaktorer - en statistisk unersökning

That air pollutants of different kind has impact on our climate can hardly have avoided anyone during the past years environment explosion in the media. But how is it actually with the reverse, i. e. the climate's impact on air pollutants? The aim with our degree thesis is to try to find out if different weather factors, statistically seen, promotes atmospheric pollutants and particles in the air and vice versa. We got access to data on air pollutants and weather factors that was registered during year 2007 at Femmanhusets air pollutant and weather station in Gothenburg. In order to do a statistical investigation of these data, and to be able to analyze if it occurs relations of various kind, we used the statistics program SPSS. In SPSS we worked with correlation, regression and multiple linear regressions in order to get our statistical relations between atmospheric pollutants and weather conditions. Our results showed that ozone is the atmospheric pollutant that is most weather sensitive and ozone has also proven to have the strongest connections to the weather factors. Also nitrogen monoxide, nitrogen dioxide and carbon monoxide are considerably influenced by the weather, however not in equally big extent as ozone. Sulphur dioxide and PM10 is on the other hand influenced in a low extent and it is in these cases difficult to say if the weather actually has any influence at all. Wind speed was, apart from sulphur dioxide and PM10, the weather factor that were strongest correlated to the remaining atmospheric pollutants. The relative humidity and the air pressure were the two factors that overall gave the weakest connections to the pollutants. As a conclusion, we can say that our results can be seen as an indication to the public about how sensitive people should minimize their time outdoors in the inner city on cold and calm days. It is when these weather conditions occur that the highest concentrations of atmospheric pollutants, statistically seen, can be found. However, this does not apply for ozone. For ozone, they should instead be aware on sunny and windy days as it, statistically seen, is days where high concentrations of ozone can be found in the air