Highway spill http://kplu.org en Seattle toxic spill temporarily shuts NB I-5 http://kplu.org/post/seattle-toxic-spill-temporarily-shuts-nb-i-5 <p></p><p>A toxic spill from a tanker truck closed the northbound lanes of Interstate 5 through Seattle for more than an hour Wednesday afternoon, backing up traffic.</p><p>The Seattle Fire Department says the spill, originally estimated at 50 gallons, is about two gallons of a sodium borohydride and sodium hydroxide solution. The chemicals are used for bleaching pulp and wood products.</p> Wed, 01 Aug 2012 23:56:14 +0000 The Associated Press 5844 at http://kplu.org