On the go recycling: is it such a good idea?

Via @Recycle4Wales, I see that grants are being offered in Wales to increase recycling on the go facilities. Sounds reasonable enough in theory but is it actually a good idea in practice?

My understanding from local authority recycling officers is that they are nervous of recycling on the go activities/facilities as these tend to contain much higher levels of contaminants than household collections. If these two recyclate streams are then mixed together it can have a detrimental impact to the overall recycling performance of the authority.

In this way, we may once again have a policy which on the face of it looks quite attractive and sensible but which may in reality be counterproductive.