Hookah more toxic than other forms of smoking tobacco: Study
New York, Aug 13: While the popularity of hookah (tobacco pipe) has increased in recent years, researchers say it may be more dangerous than other forms of smoking tobacco.
Using a custom-built testing device, the researchers analysed emissions during a typical hookah session and found that one draw from a pipe contained as many noxious substances as a cigarette.
Hookah mainstream smoke, which is directly inhaled, has many toxic and harmful chemicals, like nicotine that can lead to tobacco addiction, irritating carbonyl compounds, and benzine, a known carcinogen,” said study lead author Veronique Perraud from University of California.
“Due to the greater volume inhaled in every puff and the longer duration of a smoking session, the hookah often delivers a higher dose of those chemicals to the smoker,” Perraud said.
It also produced large quantity of carbon monoxide, mainly from the burning of charcoal to heat the tobacco or herbal mixture in its bowl. The study, published in journal Aerosol Science and Technology, also referred to several cases of carbon monoxide intoxication.
In addition to testing ordinary tobacco, the group also studied a nicotine-free herbal mixture, marketed as a healthier alternative, and discovered that it produced even higher levels of toxic gases.
The study is the first to characterise ultra-fine particles (with a diameter smaller than 100 nanometers) in the inhaled smoke.
The researchers measured the chemical composition of gases and solids emitted during a hookah session in real time. “Through our technique of testing emissions in the beginning, midpoint and end of a smoking session, we were able to show that a smoker is exposed to a higher quantity of ultra-fine particles during the first 10 minutes compared with the rest of the session,” she said.
According to the study, these miniscule particles can pose significant health risks by making their way deep into the pulmonary system and by readily crossing the blood-brain barrier.
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Kenya cancels airport and energy deals with Adani group after US indicts the tycoon
Nairobi, Nov 21: Kenya's president said Thursday he has cancelled multimillion-dollar airport expansion and energy deals with Indian tycoon Gautam Adani after US bribery and fraud indictments against one of Asia's richest men.
President William Ruto in a state of the nation address said the decision was made “based on new information provided by our investigative agencies and partner nations.” He didn't specify the United States.
The Adani group had been in the process of signing an agreement that would modernize Kenya's main airport in the capital, Nairobi, with an additional runway and terminal constructed, in exchange for the group running the airport for 30 years.
The widely criticised deal had sparked anti-Adani protests in Kenya and a strike by airport workers, who said it would lead to degraded working conditions and job losses in some cases.
The Adani group had also been awarded a deal to construct power transmission lines in Kenya, East Africa's business hub.
Also Thursday, Energy Minister Opiyo Wandayi told a parliamentary committee there had been no bribery or corruption involved on Kenya's part in signing that deal.
US prosecutors indicted Adani this week on charges he duped investors in a massive solar energy project in India by concealing that it was facilitated by an alleged bribery scheme. He was charged with securities fraud and conspiracy to commit securities and wire fraud.
