Thus, it is prudent for all of us to make sure that we have at least several days of supplies on hand of such essential items as food, water, first aid supplies, batteries, toilet paper, candles and other items to avoid running short until order is restored.Sources for this article include:http://www.emedicinehealth.com/activated_charcoal/article_em.htmhttp://en.wikipedia.org/wiki/Activated_carbon