#460 - Buying dish brush made from natural materials instead of plastic

I was shocked when I realized that the „hairs“ of the plastic dish brush became loose whilst cleaning my pan. I almost flushed them through the sink, so probably have done so already in the past. As these hairs are tiny, I wonder whether they can be removed by the sewage treatment plant. If not and they end up in the ocean, that would mean the ocean starts in my sink!