The fugitive particle problem—and that is really what's at issue here—applies to all ports and even to the mining industry. Methods used to contain those particles are well documented. In the case of silos, we think that the main measures were taken because the substance reacts to the environment and particles must be contained. A lot of citizen-led action has been undertaken in that area.
I don't know why the same measures are not applied across the territory. I think the only explanation is that profitability takes precedence over human health.