What's the difference between smoke and soot?

Smoke


Definition:

  • (n.) The visible exhalation, vapor, or substance that escapes, or expelled, from a burning body, especially from burning vegetable matter, as wood, coal, peat, or the like.
  • (n.) That which resembles smoke; a vapor; a mist.
  • (n.) Anything unsubstantial, as idle talk.
  • (n.) The act of smoking, esp. of smoking tobacco; as, to have a smoke.
  • (n.) To emit smoke; to throw off volatile matter in the form of vapor or exhalation; to reek.
  • (n.) Hence, to burn; to be kindled; to rage.
  • (n.) To raise a dust or smoke by rapid motion.
  • (n.) To draw into the mouth the smoke of tobacco burning in a pipe or in the form of a cigar, cigarette, etc.; to habitually use tobacco in this manner.
  • (n.) To suffer severely; to be punished.
  • (v. t.) To apply smoke to; to hang in smoke; to disinfect, to cure, etc., by smoke; as, to smoke or fumigate infected clothing; to smoke beef or hams for preservation.
  • (v. t.) To fill or scent with smoke; hence, to fill with incense; to perfume.
  • (v. t.) To smell out; to hunt out; to find out; to detect.
  • (v. t.) To ridicule to the face; to quiz.
  • (v. t.) To inhale and puff out the smoke of, as tobacco; to burn or use in smoking; as, to smoke a pipe or a cigar.
  • (v. t.) To subject to the operation of smoke, for the purpose of annoying or driving out; -- often with out; as, to smoke a woodchuck out of his burrow.

Example Sentences:

  • (1) The prenatal risk determined by smoking pregnant woman was studied by a fetal electrocardiogram at different gestational ages.
  • (2) Children of smoking mothers had an 18.0 per cent cumulative incidence of post-infancy wheezing through 10 years of age, compared with 16.2 per cent among children of nonsmoking mothers (risk ratio 1.11, 95% CI: 1.02, 1.21).
  • (3) They spend about 4.3 minutes of each working hour on a smoking break, the study shows.
  • (4) No associations were found between sex, body-weight, smoking habits, age, urine volume or urine pH and the O-demethylation of codeine.
  • (5) A commensurate rise in both smoking and adenocarcinoma has occurred in the Far East where the incidence rate (40%) is twice that of North America or Europe.
  • (6) In addition, control experiments with naloxone, ethanol, or cigarette smoking alone were performed.
  • (7) Plasma renin activity (PRA) and aldosterone concentration were measured before and during submaximal exercise in 10 male monozygotic twin pairs who were discordant for smoking.
  • (8) The results indicated that smoke, as opposed to sham puffs, significantly reduced reports of cigarette craving, and local anesthesia significantly blocked this immediate reduction in craving produced by smoke inhalation.
  • (9) This study examines the extent to which changes in smoking can account for the decrease in CHD mortality for men and women aged 35-64 years.
  • (10) However, as all subjects had normal hearing and maximum speech discrimination scores pre-smoking, it can only be concluded that smoking marihuana did not worsen the hearing--the experiments were not designed to see whether it would improve hearing.
  • (11) Further analysis of these changes according to smoking history, age, preoperative weight, dissection of IMA, and aortic cross-clamp time showed that only IMA dissection affected the postextubation changes in peak expiratory flow rate (p less than 0.0001), whereas the decreases in functional residual capacity and expiratory reserve volume at discharge were affected by IMA dissection (p less than 0.05) and age (p = 0.01).
  • (12) It has been speculated that these cigarette smoke-induced alterations contribute to the depressed pulmonary defense mechanisms commonly demonstrated in smokers.
  • (13) We ganged up against the tweed-suited, pipe-smoking brigade.
  • (14) The history of tobacco production and marketing is sketched, and the literature on chronic diseases related to smoking is summarized for the Pacific region.
  • (15) Exposure to whole cigarette smoke from reference cigarettes results in the prompt (peak activity is 6 hrs), but fairly weak (similar to 2 fold), induction of murine pulmonary microsomal monooxygenase activity.
  • (16) The authors compared the prevalence of atopy in 103 patients with lung cancer (a model of mucosal cancer), 51 patients with chronic obstructive pulmonary disease matched for age, sex, and smoking habits with patients with lung cancer, and 102 healthy control subjects.
  • (17) Possible explanations of the clinical gains include 1) psychological encouragement, 2) improvements of mechanical efficiency, 3) restoration of cardiovascular fitness, thus breaking a vicous circle of dyspnoea, inactivity and worsening dyspnoea, 4) strengthening of the body musculature, thus reducing the proportion of anaerobic work, 5) biochemical adaptations reducing glycolysis in the active tissues, and 6) indirect responses to such factors as group support, with advice on smoking habits, breathing patterns and bronchial hygiene.
  • (18) There are many factors influencing these students to start smoking.
  • (19) Adjustment for possible mechanisms correlated with social class (marital status, smoking, time of first antenatal visit) decreased the higher occurrence of low birthweight infants in the low educational groups.
  • (20) These results suggest that weight change during smoking reduction and cessation may be primarily due to changes in factors other than caloric intake or activity.

Soot


Definition:

  • (n.) A black substance formed by combustion, or disengaged from fuel in the process of combustion, which rises in fine particles, and adheres to the sides of the chimney or pipe conveying the smoke; strictly, the fine powder, consisting chiefly of carbon, which colors smoke, and which is the result of imperfect combustion. See Smoke.
  • (v. t.) To cover or dress with soot; to smut with, or as with, soot; as, to soot land.
  • (a.) Alt. of Soote

Example Sentences:

  • (1) With the exception of PMMA and PTFE, all plastics leave a very heavy tar- and soot deposit after burning.
  • (2) No difference in the yield of bacterial mutagens per gram of fuel burned was found between cyclic operation under low and moderate sooting conditions.
  • (3) The report also warned of a growing risk of contaminated water supply because of sea-level rise and flooding, and poor air quality as hotter temperatures cook the smog, and soot from wildfires drifts across the country.
  • (4) When soot from those fires settles over the ice, it captures the sun's heat.
  • (5) The impact of the soot is as significant as it is surprising — it was not mentioned as a warming factor in the UN's major 2007 report on climate change.
  • (6) Under the same incubation conditions without soot, free B[a]P was extensively metabolized by microsomes, principally to B[a]P-9,10-diol.
  • (7) Nitrogen dioxide is shown to be a more hazardous pollutant than flame-soot within the given combination.
  • (8) To determine the factors affecting the bioavailability of particle-associated PAH, we have studied the ability of microsomes to facilitate transfer of benzo[a]pyrene (B[a]P) adsorbed on the surface of diesel exhaust soot particles to the microsomes and the ability of the microsomes to metabolize the transferred B[a]P. Our results indicate that rat lung and liver microsomes were able to facilitate the transfer of small amounts of B[a]P from diesel particles (less than 3%), but only a fraction of the amount transferred (1-2%) was metabolized.
  • (9) The transport rates of each material component of diesel exhaust particles (soot, slowly cleared organics, and fast-cleared organics) were derived using available experimental data and several mathematical approximations.
  • (10) The intense phototoxic activity of native soot ingested by the ciliates was shown to be dependent on the amount of polycyclic hydrocarbons contained.
  • (11) The figure includes around 29,000 deaths hastened by inhaling minute particles of oily, unburnt soot emitted by all petrol engines, and an estimated 23,500 by the invisible but toxic gas NO 2 emitted by diesel engines.
  • (12) His head pounds, “my chest gets heavy, stomach gets tight” and “I feel suffocated, anxious.” “I have difficulty breathing at the end of the day, my face is black with soot,” says Kumar, waiting for his next fare on a noisy corner in south Delhi, beside a road jammed with honking cars, trucks and buses.
  • (13) But by far the greatest source of renewable energy used globally at present is burning biomass (about 10% of the total global energy supply), which is problematic because it can cause deforestation, leads to deposits of soot that accelerate global warming, and cooking fires cause indoor air pollution that harms health.
  • (14) Among carcinogens identified in the work environment, tars, soots and oils with content of polycyclic aromatic hydrocarbons (46.5%), chromium compounds (24.3%), "other" chemicals like ferric oxide, dichlorobenzidine, N-Phenyl-2-naphthylamine (9.1%), and asbestos (9.1%) have predominated in proportions given in brackets.
  • (15) A rapid optical method for determining the quantity of soot in the lungs of rodents exposed to diluted diesel exhaust has been developed.
  • (16) In using the standard alkali digestion method for pulmonary asbestos fibre count, it was found that carbonaceous particles often obscured the presence of asbestos bodies (coated fibres) rendering their quantification inaccurate, particularly in lungs with a high soot particle content and a low fibre count.
  • (17) But when recent observations about the atmospheric height of soot particles were used, a model simulation by the Centre for International Climate and Environmental Research-Oslo (Cicero), published in the journal Nature Communications , found that its warming impacts were roughly halved.
  • (18) The benzene extract of oil shale soot, painted on the skin of white mice, proved to be strongly carcinogenic: in most of the animals skin tumors developed.
  • (19) 12 patients showed isolated mucosal inflammation, 5 blackish deposits (of impacted soot) and blisters in 6 (with shreds of mucosa hanging loose); the endoscopy was normal in 18; 66% of those with blisters (4 cases out of 6) and 40% with blackened mucosa (2 cases out of 5) were observed in burns from fires.
  • (20) Together, these tricks of the auto trade should increase a car’s fuel economy and lower its carbon dioxide (CO 2 ), soot or toxic nitrogen dioxide (NO 2 ) gas pollution levels by about 10-20%.

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