This is a very odd statement to make considering that the LNG plant will be for use in the Irish market. In fact most of the dangerous things that come into Ireland “floating up the Shannon” are for domestic use.
What would be the point in shipping it into Ireland and then road freighting it to Europe when you can float it in to Rotterdam at a fraction of the cost? Lisbon treaty or not all this stuff would still be coming into Ireland although without the EU it might be at a higher cost as the lack of free trade would become an issue.

I’m not sure an Bord Planeala had any grounds to reject permission for the tanks. Apartments and houses have been built within a few meters of Oil and petrol storage tanks on the dock road. These while not as explosive as LNG plants are extremely dangerous if they catch fire. Just look at that storage depot that went up in England last year. A precedent has been set to allow people to build residential units adjacent to highly volatile storage installations!