Utah Air Quality

Photos of the Week

The silhouette of Utah State Capitol is shown against the blue sky and particulates from an inversion Wednesday, Jan. 2, 2013, in Salt Lake City. As Utah's air quality worsens, state regulators are working a set of plans to limit everyday emissions, from banning the sale of aerosol deodorants and hair spray to prohibiting wood burning in fireplaces more often during the year. (AP Photo/Rick Bowmer)

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Britain New Year... Fireworks explode over Elizabeth Tower housing the Big Ben clock to celebrate the New Year in London, Tuesday, Jan. 1, 2013. (AP Photo/Kirsty Wigglesworth)
Four Hills Ski J... Austria's Gregor Schlierenzauer soars through the air during his trial jump at the second stage of the four hills ski jumping tournament in Garmisch-Partenkirchen, southern Germany, Monday, Dec. 31, 2012. (AP Photo/Matthias Schrader)
Sydney New Year Fireworks explode in the sky above Sydney Harbour during the New Year celebrations in Sydney, Australia, Tuesday, Jan. 1, 2013.(AP Photo/Rob Griffith)
Mexico Moon The moon is seen in its waning gibbous stage over the glowing neon outline of a cross on top of the Maria Magdalena de Tepexpan Catholic Church, Sunday, Dec. 30, 2012 in Tepexpan, Mexico. The church, which is in a small town north east of Mexico City, was built in 1542. (AP Photo/Julio Cortez)
Pope and 35th Eu... Pope Benedict XVI arrives in St. Peter square, Saturday, Dec. 29, 2012, for a meeting with the young people of the community of Taize'. Thousands of faithful from across Europe met in Rome to pray on occasion of the 35th European meeting of young people. (AP Photo/Alessandra Tarantino)
Chicago Weather People skate on an ice rink in Chicago, Sunday, Dec. 30, 2012. Snow and cold have been lacking in Chicago recently and one of the city's winterless weather streaks has now tied an all-time record. (AP Photo/Nam Y. Huh)
India Kashmir Ne... Kashmiri people and tourists watch the last sunset of the year 2012, at the Dal Lake in Srinagar, India, Monday, Dec. 31, 2012.(AP Photo/Mukhtar Khan)
Fiscal Cliff The moon rises behind the U.S. Capitol Dome in Washington as Congress works into the late evening, Sunday, Dec. 30, 2012 to resolve the stalemate over the pending "fiscal cliff." (AP Photo/J. David Ake)
Annual Torchligh... Up Helly Aa vikings from the Shetland Islands, hold lit torches during the annual torchlight procession to mark the start of Hogmanay (New Year) celebrations in Edinburgh, Scotland December 30, 2012. The annual torchlight procession finishes with a fireworks display at Calton Hill in Edinburgh. (REUTERS/David Moir)
Nepal Festival Nepalese Gurung community women in traditional attire dance during Tamu Loshar in Katmandu, Nepal, Sunday, Dec. 30, 2012. Tamu Loshar is the New Year of the Gurungs, an indigenous community who also call themselves "Tamu." (AP Photo/Niranjan Shrestha)
Russia Weather Woman pulls a sled with a child on frozen pound in Moscow, Russia, Tuesday, Jan. 1, 2013. The 16th-century Novodevichy Convent is on background. (AP Photo/Misha Japaridze)
New Year's Eve C... Confetti flies over New York's Times Square after the clock strikes midnight during the New Year's Eve celebration as seen from the Marriott Marquis hotel Tuesday, Jan. 1, 2013 in New York. (AP Photo/Mary Altaffer)
India Weather An Indian walks surrounded by fog as the sun rises in Ajmer, India, Tuesday, Jan. 1, 2013. North India continues to face extreme weather conditions with dense fog affecting flights and trains. (AP Photo/Deepak Sharma)
France New Year'... Revelers celebrate the New Year on the Champs Elysee in Paris, Tuesday Jan. 1, 2013.(AP Photo/Remy de la Mauviniere)
Germany Zoo A young snowy owl looks into the camera at the zoo in Krefeld, Germany, Wednesday, Jan. 2, 2013. The species is native to northern Eurasia and North America. (AP Photo/dpa, Roland Weihrauch)
India Protest Slum dwellers from different parts of the city of Mumbai shout slogans during a protest in Mumbai, India, Wednesday, Jan 2, 2013. The protest was against builder-state nexus in Mumbai and to demand housing rights from the government for the urban poor. (AP Photo/Rafiq Maqbool)
Japan Emperor Well-wishers wave Japanese flags as Japan's Emperor Akihito and Empress Michiko show during the new year's celebrations at the Imperial Palace in Tokyo, Wednesday, Jan. 2, 2013. Thousands of people from across the country turned out at the palace to greet Emperor and the Imperial family for the new year. (AP Photo/Itsuo Inouye)
Annual Mummers P... People participate in the 113th annual Mummers Parade in Philadelphia, on Tuesday Jan. 1, 2013. (AP Photo/Joseph Kaczmarek)
Germany New Year Members of the historic grenadier corps fire twelve shots in salute of the new year in Villingen-Schwenningen, southern Germany, Tuesday, Jan. 1, 2013. The first new year cannonade took place in 1633. (AP Photo/dpa, Patrick Seeger)
Rose Parade The Los Angeles Unified School District All-City Honor Band performs in the 124th Rose Parade in Pasadena, Calif., Tuesday, Jan. 1, 2013. (AP Photo/Patrick T. Fallon)
Britain New Year... All American Cheerleaders and Dancers 'Starships' perform in the New Years Day Parade in London, Tuesday, Jan. 1, 2013. (AP Photo/Kirsty Wigglesworth)
Austria New Year... General view of the the traditional New Year's concert of the Vienna Philharmonic Orchestra conducted by Austrian maestro Franz Welser-Moest at the Golden Hall of the Musikverein in Vienna, Austria, Tuesday, Jan. 1, 2013. The concert is being broadcast to over 80 countries around the globe. (AP Photo/Ronald Zak)
Russia Chechnya ... Fireworks explode in the sky over downtown Grozny, the capital of Chechnya, southern Russia, early Tuesday, Jan, 1, 2013. (AP Photo/Musa Sadulayev)
The 48th Anniver... A Palestinian music band member marches during celebrations of the 48th anniversary of the Fatah movement in the West Bank city of Ramallah, Monday, Dec 31, 2012. (AP Photo/Majdi Mohammed)
Rio de Janeiro N... A woman celebrates the New Year as she watches fireworks exploding above Copacabana beach in Rio de Janeiro January 1, 2013. More than two million people gathered along Rio's most famous beach to witness the 20-minute display and celebrate the beginning of a new year. (REUTERS/Pilar Olivares)
Central African ... Soldiers from the Republic of Congo, operating under a multinational central-african regional mandate, arrive by airplane to boost existing forces, at an airport in Bangui, Central African Republic Monday, Dec. 31, 2012. Rebels in the Central African Republic on Monday rejected appeals for them to halt their advances and to negotiate to form a coalition government. (AP Photo/Ben Curtis)
China Factory Bl... Firefighters try to extinguish a fire at the Hangzhou Yusei Machinery Co.,Ltd in Xiaoshan District in Hangzhou, Zhejiang Province January 1, 2013. Three firemen died while trying to extinguish a factory blaze which broke out in the early hours of Tuesday in east China's Zhejiang Province, fire authorities said, Xinhua News Agency reported. (REUTERS/Stringer)
The Red Shoe Dro... Gary Marion, portraying female impersonator Sushi, hangs in an oversized replica of a women's red high heel over Duval Street late December 31, 2012, at the Bourbon Street Pub Complex in Key West, Florida. The Red Shoe Drop has become a Key West tradition and is one of five Florida Keys warm-weather takes on New York City's Times Square ball drop marking the beginning of the New Year. (REUTERS/Andy Newman/Florida Keys News Bureau/Handout)
Russia Art Exhib... Visitors look at an exhibit on display during the opening of "Art Experiment" exhibition at Garage Center for Contemporary Culture’s in Moscow's Gorky Park, Russia, Wednesday, Jan. 2, 2013. The exhibition is sponsored by the British Council. (AP Photo/Mikhail Metzel)
Spain Daily Life People travel by aerial tramway in Madrid, Spain, Tuesday, Jan. 1, 2013. (AP Photo/Andres Kudacki)
Arbaeen Commemor... Iranian mourners attend a ceremony commemorating Arbaeen, the final day of the annual 40-day mourning period for the seventh century martyrdom of Imam Hussein, the grandson of Prophet Muhammad, in Tehran, Iran, Thursday, Jan. 3, 2012. (AP Photo/Vahid Salemi)
Argentina Wooden... Passengers travel in a wooden carriage car on the historic subway system, Line A, in Buenos Aires, Argentina, Wednesday, Jan. 2, 2013. The city government announced that the almost 100-year-old 'La Brugeoise' wooden carriages will be replaced in a short time by modern Chinese units. (AP Photo/Natacha Pisarenko)
Israel Jewish We... Ultra-Orthodox Jews gather in the men's section for a traditional Jewish wedding of the great-grandson of the Rabbi of the Sanz Hasidic dynasty, in Netanya, Israel, Wednesday, Jan. 2, 2013. Thousands of people attended the wedding. (AP Photo/Oded Balilty)
Connecticut Scho... A bus traveling from Newtown, Conn., to Monroe stops in front of 26 angels along the roadside on the first day of classes for Sandy Hook Elementary School students since the Dec. 14 shooting, in Monroe, Conn., Thursday, Jan. 3, 2013. Chalk Hill School in Monroe was overhauled especially for the students from the Sandy Hook School shooting. (AP Photo/Jessica Hill)
Mumbai India Fai... An Indian daredevil performs in a "Wall of Death" at a fair in Mumbai India, Thursday, Jan 3, 2013. In the Wall of Death, stunt drivers on motorbikes and cars drive in circles around the vertical walls of the circular construction. (AP Photo/Rafiq Maqbool)
Maine Cold Weath... Two passengers brave the frigid weather while riding outside on a ferry crossing Casco Bay in Portland, Maine, at sunrise, Thursday, Jan. 3, 2013. The overnight low temperature dropped to 0 degrees Fahrenheit in Portland. The combination of cold air and warmer ocean water created the arctic sea smoke. (AP Photo/Robert F. Bukaty)
London Zoo Stock... A male jungle nymph sits on a female jungle nymph during a photo call for the annual stock take at London Zoo, Thursday, Jan. 3, 2013. More than 17,500 animals including birds, fish, mammals, reptiles and amphibians are counted in the annual stock take at the zoo. (AP Photo/Kirsty Wigglesworth)
Four Hills Ski J... Germany's Andreas Wank soars through the air during his competition jump at the third stage of the four hills ski jumping tournament in Innsbruck, Austria, Thursday, Jan. 3, 2013. (AP Photo/Matthias Schrader)
Russia Weather A woman walks with her child on the banks of the Yenisey River in air temperatures of about minus 30 degrees Celsius (minus 22 degrees Fahrenheit) during winter outside the Siberian city of Krasnoyarsk January 2, 2013. (REUTERS/Ilya Naymushin)
Greece Financial... Haze of smoke hangs over the city skape in Athens, early Thursday, Jan. 3, 2013. The cloud is the result of a massive switch to wooden stoves and fireplaces for heating as many households, already hard hit by the economic crisis, can not afford to buy heating oil after the cash-strapped government decided to harmonize taxes on heating oil and diesel fuel, leading to a 40 percent rise in the price of heating oil. (AP Photo/Petros Giannakouris)
New Congress Members of the 113th Congress, many accompanied by family members, take the oath of office in the House of Representatives chamber on Capitol Hill in Washington, Thursday, Jan. 3, 2013. (AP Photo/J. Scott Applewhite)
India Kite Festi... Indian children fly kites on a rooftop ahead of a kite festival in Ahmadabad, India, Friday, Jan. 4, 2013. The Kite festival Uttarayan or Makar sankranti will be celebrated on Jan. 14, 2013. Kites are flown in many parts of India during Makar Sakranti, a festival that marks the transition of winter to spring. (AP Photo/Ajit Solanki)
Myanmar Independ... Honor guard members attend a ceremony to mark the country's 65th anniversary of the Independence Day in Naypyitaw, Myanmar, Friday, Jan. 4, 2013. (AP Photo/Khin Maung Win)
Utah Air Quality... The silhouette of Utah State Capitol is shown against the blue sky and particulates from an inversion Wednesday, Jan. 2, 2013, in Salt Lake City. As Utah's air quality worsens, state regulators are working a set of plans to limit everyday emissions, from banning the sale of aerosol deodorants and hair spray to prohibiting wood burning in fireplaces more often during the year. (AP Photo/Rick Bowmer)
India Kumbh Fest... Naga Sadhus, or Naked Hindu holy men, arrive during a religious procession towards the Sangam, the confluence of rivers Ganges, Yamuna and mythical Saraswati, as part of the Mahakumbh festival in Allahabad, India, Friday, Jan. 4, 2013. Millions of Hindu pilgrims are expected to take part in the large religious congregation on the banks of the Sangam during the festival in January 2013, which falls every 12th year. (AP Photo/Rajesh Kumar Singh)
Myanmar Ethnic R... A child runs outside huts at Hpun Lum Yang IDP camp near to Laiza where Kachin Independence Army is headquartered, northern Myanmar, Friday, Jan. 4, 2013. The KIA said Thursday that military air attacks against them were continuing, but that the guerrillas still held key positions protecting their main base. (AP Photo/Yadana Htun)
Shell Arctic Dri... In this image provided by the U.S. Coast Guard shows two life rafts sit on the beach adjacent as the conical drilling unit Kulluk sits grounded 40 miles southwest of Kodiak City, Thursday, Jan. 3, 2012. The Kulluk grounded after many efforts by tug vessel crews and Coast Guard crews to move the vessel to safe harbor during a winter storm.Calls for federal scrutiny of Royal Dutch Shell PLC drilling operations in Arctic waters swelled Thursday with a request for a formal investigation by members of Congress. (AP Photo/U.S. Coast Guard, Petty Officer 2nd Class Zachary Painter)
Sierra Snow Pack... Bodhi Jones, 8, shouts with excitment as he and his father, Erik, ride a sled down a snow covered hill near Echo Summit Calif., Wednesday, Jan. 2, 2013. The California Department of Water Resources held its first snow survey of the season showing the snow pack to be be 48.6 inches deep with a water content of 12.1 inches, which is 101 percent of normal for this site at this time of year.(AP Photo/Rich Pedroncelli)
Candle Light Ral... Nepalese women participate in a candle light rally to protest against what they say is an increase in violence against women, demanding the government to implement stronger laws and to take firm action against violence on women, in Kathmandu January 3, 2013. A series of rapes and assaults were reported over the past couple of weeks from all over Nepal, according to local media. (REUTERS/Navesh Chitrakar)
India Dalai Lama... Tibetan spiritual leader the Dalai Lama, right, prays along with the others around the Bodhi tree in Patna, India, Friday, Jan. 4, 2013. Buddhists pray before the Bodhi Tree, the same specie of Banyan tree under which Gotama Buddha gained enlightenment over 2,500 years ago in India and recite religious verses at temples or pagodas. (AP Photo/Aftab Alam Siddiqui)