Ankara'da 46 kahvehanede formaldehit düzeylerinin belirlenmesi

Bu çalışma, Ankara ili merkez ilçelerinden rastgele seçilen 46 kahvehanedeki formaldehit düzeylerini ölçmek amacıyla yapılan tanımlayıcı tipte bir araştırmadır. Formaldehit ölçümleri için Formaldemetre 400 ölçüm cihazı kullanılmıştır. Ölçümler kahvehanelerde anlık olarak gerçekleştirilmiştir. Formaldehit düzeylerinin ortalaması 0,20 ppm´dir. Kahvehanelerin tamamında yapay havalandırma bulunmaktadır. Havalandırma yöntemi olarak %69,6'sında aspiratör kullanılmaktadır. Ancak bunların %81'inde formaldehit düzeyi 0,10 ppm'in üzerinde bulunmuştur. Kahvehanelerin %51'inde soba ile ısınılmaktadır ve bunların %95,7'sinde formaldehit düzeyi 0,10 ppm'in üzerinde bulunmuştur. Kahvehanelerin ısınma tipi ile formaldehit düzeyleri arasında istatistiksel olarak anlamlı bir ilişki bulunmuştur (p

Determination of formaldehyde levels in 46 coffee shops in Ankara

This study is a descriptive research performed in order to measure formaldehyde levels in 46 random selected coffee shops in from central districts of Ankara. Formaldemeter 400 was used for formaldehyde measures. Simultaneous measures were applied in coffee shops. Mean of formaldehyde levels was 0,20 ppm. There was artificial ventilation in all of the coffee shops. It was used aspirator as ventilation device in 69,6% of the coffee shops. But in 81,0% of these, the formaldehyde levels were above 0,10 ppm. In 51,0% of the shops stoves were used for warming and 95,7% of these formaldehyde levels were above 0,10 ppm. There were statistically significant difference between warming-up method and formaldehyde levels of coffee shops ( p<0,05, chi square = 6,4). It was used liquid fuel in 51,1% of them as heating fuel. In 69,6% of them formaldehyde levels were above 0,10 ppm. There were statistically significant difference between fuel type and formaldehyde levels of coffee shops ( p<0,05, chi square = 5,7). As a result; in 91,3% of the coffee shops formaldehyde levels were above the 0,03 ppm which is permitted limit for indoors, and in 82,6% of them formaldehyde levels were above the 0,1 ppm which is symptom producing level.

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