<p>Ballast systems are judged on whether they kill invasive organisms, not on what their oxidant chemistry leaves behind. With billions of tonnes discharged each year, ports still have little idea how much bromoform and other by-products are accumulating in their waters. Captain Alex Byelyavtsev reports. Ballast water treatment was built for one problem: ships were &#8230;</p> </p><p><p>https://splash247.com/the-chemical-blind-spot-in-ballast-water-treatment/</p></p>