**8.4. Source group 4—production of mineral products**

Under this production of mineral product, there are six source categories activities responsible for the emission of dioxin and furan. These are cement kiln, lime production, ceramic production, brick production, glass production, asphalt mixing, and oil shale processing [2].

#### **8.5. Source group 5—transport**

Transport is one of source group that releases dioxin and furan organic pollutant due to the incomplete combustion of an engine. Under this source group, 4 stroke engine, 2 stroke engine, diesel engine, and heavy oil engine vehicles categories are responsible for emission of unintentional persistence organic pollutant [2].

#### **8.6. Source group 6—open burning process**

Due to the incomplete combustion of biomass, emission of PCDD/PCDF toward the environment Medias such as air, water, land and products will be occurred. Thus, under the group of open burning process only two categories were identified such as biomass burning (forest fire- sugar cane etc.) and waste burning and accidental fires(accidental fire on vehicle and house) [2].

#### **8.7. Source group 7—production and use of chemicals and consumer goods**

According to UNEP toolkit [2], production and use of chemical and consumer goods are one of the anthropogenic activities for emission of persistence organic pollutants which have been classified under the source group of unintentional persistence organic pollutants. This source group also classified into various categories such as pulp and paper mills, chlorinated inorganic chemicals, chlorinated aliphatic chemicals, chlorinated aromatic chemicals (per ton product), other chlorinated and nonchlorinated chemical (per ton product) petroleum refining, textile plants (per ton textile), and leather plants.
