|Industry||Tons (thousands)||Ton-miles (millions)|
|Total tons||Hazardous tons||Hazardous share of total||Total ton-miles||Hazardous ton-miles||Hazardous share of total|
|Petroleum and Coal Products Manufacturing (324)||1,415,099||930,698||65.8||207,148||128,090||61.8|
|Chemical Manufacturing (325)||594,262||248,941||41.9||279,917||101,050||36.1|
|Chemical and Allied Products Merchant Wholesalers (4246)||119,971||64,533||53.8||31,344||12,813||40.9|
|Petroleum and Petroleum Products Merchant Wholesalers (4247)||846,636||803,894||95.0||52,112||39,482||75.8|
|Fuel Dealers (45431)||48,438||47,817||98.7||1,784||1,761||98.7|
|Corporate, Subsidiary, and Regional Managing Offices (55114)||250,262||72,893||29.1||80,199||17,764||22.1|
|All Other Surveyed Industries||9,268,757||62,356||0.7||2,692,154||22,497||0.8|
NOTE: North American Industry Classification System (NAICS) codes shown had the highest estimated tonnages (without considering the sampling variability). For additional information on the methodology, please see http://www.bts.gov/publications/commodity_flow_survey/2007/hazardous_materials/. For an explaination of NAICS codes, please see 2007 North American Industry Classification System, available at http://www.census.gov/naics as of January 2010.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, and U.S. Department of Commerce, U.S. Census Bureau, 2007 Commodity Flow Survey, Hazardous Materials, table 2a, available at http://www.bts.gov/publications/commodity_flow_survey/ as of Nov. 18, 2010.