The city of Houston has a strong mayoral form of municipal government. Houston is a home rule city and all municipal elections in the Texas are nonpartisan the city's elected officials are the mayor city controller and 16 members of the Houston City Council the current mayor of Houston is Sylvester Turner a Democrat elected on a nonpartisan ballot Houston's mayor serves as the city's chief administrator executive officer and official representative and is responsible for the general management of the city and for seeing that all laws and ordinances are enforced. The United States Census Bureau estimates the population of Texas was 28,701,845 on July 1 2018 a 14.14 percent increase since the 2010 United States Census, I-69 (TX).svgUS 59.svg Interstate 69/U.S Highway 59 a.k.a - Eastex Freeway going NE or Southwest Freeway going SW, 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. Mexican authorities became increasingly concerned about the stability of the region the colonies teetered at the brink of revolt in 1829 after Mexico abolished slavery in response President Anastasio Bustamante implemented the Laws of April 6 1830 which among other things prohibited further immigration to Texas from the United States increased taxes and reiterated the ban on slavery. Settlers simply circumvented or ignored the laws by 1834 an estimated 30,000 Anglos lived in Coahuila y Tejas compared to only 7,800 Mexican-born residents. By the end of 1835 almost 5,000 enslaved Africans and African Americans lived in Texas making up 13 percent of the non-Indian population, 12 Communities Houston is a significant hub for trafficking of cocaine cannabis heroin MDMA and methamphetamine due to its size and proximity to major illegal drug exporting nations. Houston is one of the country's largest hubs for human trafficking, 6.3 Foreign relations Maritime boundary delimitation agreements.
. 48 El Paso Energy 481 See also: List of hospitals in Texas. .
D Street Medical Center