explosion http://iowapublicradio.org en Are Iowa Fertilizer Plants at Risk? http://iowapublicradio.org/post/are-iowa-fertilizer-plants-risk <p></p><p> The deadly explosion at a fertilizer plant in West, Texas is prompting questions about regulatory oversight there.&nbsp; In Iowa, officials say fertilizer is only produced at a handful of sites across the state, but many others store it.</p><p>A U.S. Environmental Protection Agency spokesman says the agency regulates 700 retail facilities in Iowa that store more than 10,000 pounds of anhydrous&nbsp;ammonia fertilizer, an ingredient that can be particularly volatile.</p> Fri, 19 Apr 2013 13:13:49 +0000 Sarah McCammon 19453 at http://iowapublicradio.org Are Iowa Fertilizer Plants at Risk?