"Pollution is the introduction of contaminants into the natural environment that cause adverse change."[1] I think the above comment is questioning whether thi

"Pollution is the introduction of contaminants into the natural environment that cause adverse change."[1] I think the above comment is questioning whether this container is causing `adverse' change. If not then I suppose this particular case wouldn't be classified as pollution. [1] https://en.wikipedia.org/wiki/Pollution https://en.wikipedia.org/wiki/Pollution