The data contain concentration of 1,3-butadiene, which is highly emmited in industrial petrochemical area, in air samples. The data is obtained after on-line monitoring using gas chromatography and the concentration is expressed in ng/m3

Period (1 file each month) January to September 2021. The data was obtained using the online 1,3-butadiene analyzer (provides concentrations every 30 minutes). All the data are 1,3-butadiene concentrations in µg/m³. Each sheet contains the information for one month; the rows represent the days and the columns represent the hours.