二噁英与全球边界

Weak regulations mean losing control of dioxin contamination 

The widely used current limit value for POPs in waste (Low POPs Content Levels) leaves vast amounts of industrial wastes containing dioxins out of control. With this weak limit level there is no requirement to destroy or irreversibly transform dioxin content in those wastes and it is not even necessary to register reuse of such waste as construction material or backfill in remediation projects. This is how dioxins in wastes can get spread without control and contribute to overall contamination of environment. 

It was estimated recently that the amount of PCDD/Fs in waste incinerator fly ash, which is virtually without control in the environment, is approximately 7.5 kg TEQ/year and can accumulate in the food chain over time. While this may not seem a large volume, PCDD/DFs are toxic in the part per billion range. So this yearly amount would be sufficient to exceed the tolerable weekly intake (WHO-TWI)  of 14 pg TEQ/kg body weight for the entire human population by 19 times, or if considering the recently updated European Food Safety Authority (EFSA) TWI, 7.5 kg TEQ/year of dioxin is sufficient to exceed the TWI of the population of this  planet by 133 times  (Petrlik, Kuepouo et al. 2021). 

Read the fact sheet below for details