16 External links Poverty Harris County operates the Harris County Sheriff's Office which serves unincorporated areas and supplements police forces of incorporated areas, The Texas Ranger Division of the Texas Department of Public Safety is a law enforcement agency with statewide jurisdiction Over the years the Texas Rangers have investigated crimes ranging from murder to political corruption They have acted as riot police and as detectives protected the Texas governor tracked down fugitives and functioned as a paramilitary force both for the republic and the state the Texas Rangers were unofficially created by Stephen F Austin in 1823 and formally constituted in 1835 the Rangers were integral to several important events of Texas history and some of the best-known criminal cases in the history of the Old West; . The Interstate 10/U.S Route 90 and Interstate 45 stack interchange northwest of Downtown Houston. . ! !
. . The city's major sports teams were using outdated stadiums and threatened to leave Eventually the Houston Oilers did so after several threats the city built Enron Field now Minute Maid Park for the Houston Astros Reliant Stadium now NRG Stadium was erected for the NFL expansion team Houston Texans.[citation needed]; 10 Healthcare The three additional East Texas counties that join with other regional government councils are Chambers County (Anahuac) Liberty County (Liberty) and Walker County (Huntsville) all three in geographic proximity to the Houston metropolitan areas, 5.2 North America An additional obvious legacy is that of Roman Catholicism At the end of Spain's reign over Texas virtually all inhabitants practiced the Catholic religion and it is still practiced in Texas by a large number of people the Spanish missions built in San Antonio to convert Indians to Catholicism have been restored and are a National Historic Landmark. 1960 938,219 57.4% 10.6 Medical research Houston panorama c 1910, Main articles: German-occupied Europe Resistance during World War II Collaboration with the Axis Powers and Nazi plunder. . Houston has excessive ozone levels and is routinely ranked among the most ozone-polluted cities in the United States. Ground-level ozone or smog is Houston's predominant air pollution problem with the American Lung Association rating the metropolitan area's ozone level twelfth on the "Most Polluted Cities by Ozone" in 2017 after major cities such as Los Angeles Phoenix New York City and Denver the industries located along the ship channel are a major cause of the city's air pollution the rankings are in terms of peak-based standards focusing strictly on the worst days of the year; the average ozone levels in Houston are lower than what is seen in most other areas of the country as dominant winds ensure clean marine air from the Gulf.
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