Articles worth reading
Taguig City Mayor Lino Cayetano

Taguig readies facilities for vaccination

account_balanceTaguig access_time4 days ago

Taguig Mayor Lino Cayetano announced that the city is already setting up four mega-quarantine vaccination centers and 40 community centers for the rollout of the government's coronavirus disease 2019 (Covid-19) vaccination program, according to a...

Sungjae Im of Korea walks off the tenth hole during the pro-am tournament prior to the Sony Open at Waialae Country Club on January 13, 2021 in Honolulu, Hawaii. Cliff Hawkins/Getty Images/AFP

Im shoots 65 to seize PGA lead in California desert

account_balanceMetro Manila access_time4 days ago

South Korea’s Im Sung-jae, a Masters runner-up last year, fired a bogey-free seven-under par 65 to grab a one-stroke lead after Friday’s second round of the US PGA American Express tournament. The 22-year-old Asian star stood on 11-under...

Matthew Wolff was assessed a one-stroke penalty from Thursday%u2019s opening round of The American Express. (Sean M. Haffey/Getty Images)

Wolff assessed penalty a day later

account_balanceMetro Manila access_time4 days ago

On Friday, Matthew Wolff was assessed a one-stroke penalty from Thursday’s opening round of The American Express for violation of Rule 9.4b (Ball Lifted or Moved by You – Penalty for Lifting or Deliberately Touching Your Ball or Causing i...

Metro Manila News

Photo Courtesy of IQOS.com

Studies show tobacco heating system does not compromise indoor air quality

account_balanceMetro Manila chat_bubble_outline0 Comments

The use of tobacco heating system does not adversely affect the overall indoor air quality, according to several scientific studies published in peer-reviewed publications.

The studies were conducted to determine the impact on air quality of new nicotine products such as tobacco heating system (THS) which are considered better alternatives to combustible cigarettes. 

Researchers said assessing air quality is an important factor of the science behind products that heat and not burn tobacco as it provides a strong indication of the potential impact that a product’s use may have on bystanders.

A novel and smoke-free nicotine product, THS such as IQOS of Philip Morris International uses an electronically-controlled mechanism to precisely heat the specially-designed tobacco sticks at temperatures below the threshold for combustion or burning.

In a study published in September 2018 by ScienceDirect, the leading platform of peer-reviewed literature, researchers from Kaunas University of Technology in Lithuania reviewed the impact of THS on indoor air quality.

It compared the indoor concentrations of substances such as formaldehyde, acetaldehyde, benzene, toluene, nicotine and particulate matter 2.5 and discussed the concentrations of other harmful and potentially harmful substances.

"In the controlled environment, the use of THS (as well as an electronic cigarette) resulted in the lowest concentrations of formaldehyde, benzene, toluene, PM2.5 among majority researched pollution sources (conventional cigarettes, waterpipe, incense, mosquito coils)," according to authors Violeta Kauneliene, Marija Meisutovic-Akhtarieva and Dainius Martuzevicius.

"Such data indicate that the levels of the main indoor air pollution markers in case of THS environmental aerosol may be too low to distinguish from the background, thus raising additional challenges for epidemiological studies aiming at the assessments of second-hand exposure in real-life environments," they said.

Another study published on ScienceDirect in March 2018 found that emissions from THS are reduced in indoor air compared to those of conventional cigarettes. Researchers from British American Tobacco Investments Ltd. said THS has a significantly lower impact on indoor air quality than the conventional combustible cigarette because of significantly lower emissions profile of both aerosol particles and chemical emissions.

The study concluded that THS had significantly less impact on indoor air quality and that its emissions were significantly less odorous than those from conventional cigarettes and their emissions.

In 2017, the Ukrainian Journal of Modern Problems of Toxicology published a study by researchers from L.I. Medved's Research Center of Preventive Toxicology, Food and Chemical Safety, Ministry of Health of Ukraine which found that during THS use, substances such as benzo(a)pyrene, nicotine and ammonia were not detected.

"Contrary to conventional cigarettes, the actual content of the air safety indicators (carbon monoxide, carbon dioxide and formaldehyde) in indoor air during and after consumption of electrically heated tobacco system by no means exceeded the threshold limit value for atmospheric air," the Ukrainian study said.

A study published in April 2019 by SpringerLink, another global publication of peer-reviewed journals, assessed air quality of THS under simulated residential conditions.

Researchers led by Dr. Maya I. Mitova of Philip Morris International said that under simulated “Residential Category III” environmental conditions, only two compounds (nicotine and acetaldehyde) and one specific compound (aerosol former glycerin) were attributable to the indoor use of THS, but at below harmful levels.

"The quantified concentrations of the three airborne compounds during indoor use (of THS) in the high-load-simulated residential environment studies were below the harmful levels defined by cognizant authorities. Thus, normal hygienic measures, such as regular aeration of the residential spaces, would lead to efficient control of these low to negligible levels of pollution," they said.

The evaluation of the concentrations of particulate matter, volatile organic compounds and semi-volatile markers of environmental tobacco smoke during simulations also showed that the environmental aerosol of THS is very different from the smoke of combustible cigarettes.

"In conclusion, the use (of THS) in an indoor environment, where norms for indoor exposure in terms of adequate ventilation are respected, does not adversely affect the overall indoor air quality," the researchers said.

date_rangeDate Published
4 months ago
shareShare article
folder_openArticle tags
content_copyCategorized under

Share your thoughts with us

Related Articles

Vaccine Czar Secretary Carlito Galvez Jr.

Health workers priority in vaccination next month 

account_balanceMetro Manila chrome_reader_mode9 hours ago

The National Task Force against Covid-19 announced that the first batch of vaccines they have procured is estimated to arrive in February this year, according to a report by Philippine News Agency. “The estimated arrival of the vaccines we hav...

QC to use churches as vaccination sites 

account_balanceQuezon City chrome_reader_mode20 hours ago

Quezon City Mayor Joy Belmonte on Tuesday expressed gratitude to the Diocese of Novaliches for allowing the use of its big parishes as inoculation sites ahead of the arrival of the coronavirus disease 2019 (Covid-19) vaccine in the country, acco...

PNP reports 52 more infected personnel 

account_balanceMetro Manila chrome_reader_mode3 days ago

Fifty-two more personnel of the Philippine National Police tested positive for the coronavirus disease 2019 (COVID-19), bringing the total to 9,809, the PNP said in a report by GMA News. The PNP also reported that total recoveries climbed to 9,269 a...

Rates of 28-day BSP bills decline

account_balanceMetro Manila chrome_reader_mode5 days ago

Rate of the Bangko Sentral ng Pilipinas’ (BSP) 28-day bills declined anew Friday, which a ranking monetary official still traced to strong demand and the higher liquidity situation in the domestic economy, according to a report by Philippi...

Matthew Wolff was assessed a one-stroke penalty from Thursday%u2019s opening round of The American Express. (Sean M. Haffey/Getty Images)

Wolff assessed penalty a day later

account_balanceMetro Manila chrome_reader_mode4 days ago

On Friday, Matthew Wolff was assessed a one-stroke penalty from Thursday’s opening round of The American Express for violation of Rule 9.4b (Ball Lifted or Moved by You – Penalty for Lifting or Deliberately Touching Your Ball or Causing i...

Tyrrell Hatton recorded a 6-under 66 in the final round. (Ross Kinnaird/Getty Images)

Hatton wins the Abu Dhabi Championship

account_balanceMetro Manila chrome_reader_mode1 day ago

Englishman Tyrrell Hatton shot a sparkling 6-under par in the final round on Sunday to win the season-opening Abu Dhabi Championship by four strokes after overnight leader Rory McIlroy faded with an uninspired even-par 72 to drop into third. Hatton ...

Let's Stay Connected Like us on our Facebook page.
×
Click on the article to continue reading
Quezon City adopts no contact apprehension system Red Cross pushes saliva test Vaccines from COVAX to arrive in Q1 Makati Shangri-La to close doors on Feb. 1 Cities in NCR to start vaccination simultaneously Mother, girlfriend of Filipino infected with UK variant also test positive Send Press Release MNC Facebook Page MNC Twitter Page MNC Instagram Page LGU Spotlight Barangay Front Business Sports Entertainment Metro Gen Metro Feature