I had a chance to review the slides and presentation from the conference “Demonstration of BAT and BEP in fossil fuel-fired utility and industrial boilers in response to the Stockholm Convention on POPs” that was distributed here. It just seems that Thailand is in its early adoption stage of rolling out the standards for industrial boilers and power plants. Dioxins, Dioxin–like compounds (DLC), PCDDs and PCDFs are by product of their effluent.
Dioxin is considered very toxic, according to Joe Thornton, "Dioxin's health effects include endocrine disruption, reproductive impairment, infertility, birth defects, lowered sperm counts, impaired neurological development, damage to the kidneys, and metabolic dysfunction...There is no evidence that there is a safe level of dioxin exposure below which none of these effects will occur..."
Several key points were delivered in the seminar which I would like to address.
In one of the presentation, the study shows that the max. amount of PCDD/PCDF emitted by wood waste and straws (wheat) exceeds the max. concentration permitted. Therefore, control of combustion of contaminated wood should be limited to incineration plants with efficient emission control systems, not just any ordinary boiler found mostly in factories.
Another presentation shows that by year 2030, if no sound environmental energy policy is efficient enough, emissions of dioxins and other pollutants will triple the amount generated now.
Communicating this message to the society to create awareness and action towards a cleaner and safer future is a must. Both direct and non-direct parties involving in boilers operation should take action to prevent emission of these contaminations.