De or het dioxinebesmetting?

The correct Dutch article is:

de dioxinebesmetting

Rule Words ending in -ing: almost always de. See the rule

How to use dioxinebesmetting

the dioxinebesmettingde dioxinebesmetting
this dioxinebesmettingdeze dioxinebesmetting
that dioxinebesmettingdie dioxinebesmetting
our dioxinebesmettingonze dioxinebesmetting
your dioxinebesmettingjouw dioxinebesmetting
every dioxinebesmettingelke dioxinebesmetting
which dioxinebesmetting?welke dioxinebesmetting?
a big dioxinebesmetting / the big dioxinebesmettingeen grote dioxinebesmetting, de grote dioxinebesmetting