What's the difference between ash and soot?

Ash


Definition:

  • (n.) A genus of trees of the Olive family, having opposite pinnate leaves, many of the species furnishing valuable timber, as the European ash (Fraxinus excelsior) and the white ash (F. Americana).
  • (n.) The tough, elastic wood of the ash tree.
  • (n.) sing. of Ashes.
  • (v. t.) To strew or sprinkle with ashes.

Example Sentences:

  • (1) It reduced serum AP levels, increased serum Ca levels, increased bone ash weight, epiphyseal and metaphyseal bone volume, with a concomitant reduction in epiphyseal and metaphyseal bone marrow volume.
  • (2) DES implantation increased the body weight of the ram by 10.4% and caused no significant change in total body water, body ash, or total muscle mass.
  • (3) Implants and femurs from both Cl2MBP groups had a higher ash content than controls, but uptake of the two isotopes was not affected.
  • (4) I told a police officer and a support worker that as a last resort I was thinking of getting on contact with Ash again.
  • (5) Results indicate that the rachitogenic factor in rye is not present in the ash portion of the grain, that it can be largely overcome by water extraction and penicillin supplementation, and that an organic solvent extraction has no effect.
  • (6) Minimal frequency for tonic firing and the slope of the linear portion of the frequency-current relation were indirectly related to the duration of the ASH.
  • (7) "We are alarmed to see the government is even wavering about continuing its programme of tracing, testing and destroying infected young ash trees.
  • (8) The dependence of the enzyme on Mg++ and Co++ for activity in the presence of high ash concentration was demonstrated.
  • (9) Tibial breaking strength and tibial percentage ash of the progeny at hatching was markedly improved in proportion to maternal phosphorus and food intake.
  • (10) Analyses of body composition indicated DHEA-treated animals had proportionately less body fat and therefore more body water, protein and ash than controls.
  • (11) Forage contents of CP and ash showed a cubic (P less than .05) response to advancing stage of regrowth, with highest (23.6 and 11.0%, respectively) and lowest (14.7 and 9.1%, respectively) values for both fractions occurring at wk 1 and 5, respectively.
  • (12) Mount Sakurajima in the south of the Kyushu Island of Japan erupts hundreds of times a year and continuously emits large amounts of ash.
  • (13) The caption blamed "the dogs of the Interior [ministry]", and claimed that incendiary bombs had been fired at the building by police, "causing a very big fire" that "burned everything to ashes".
  • (14) But we will need the nurseries as they are going to be very important in restocking woods" if varieties that are resistant to ash dieback become available.
  • (15) The government banned imports of ash trees last Monday after a programme in which 100,000 specimens have been destroyed since the disease was discovered in March.
  • (16) Thyroxine complementation in TX or TPTX mothers induced a normalization of the fetal percentage of ash in both cases; a trend towards an increased value was observed in the percentage of ash of fetal femurs.
  • (17) These phantoms are made of bone ash suspended in white petrolatum in varying concentrations.
  • (18) Out of them 84 cases of advanced left ventricular hypertrophy (LVH) [37 cases of symmetric hypertrophy (HT-SH group) and 47 cases of ASH (HT-ASH group)] were compared in their clinical and echocardiographic findings with hypertrophic cardiomyopathy (HCM).
  • (19) The IFS’s preference is to use ASHE as its measure of earnings with the Consumer Prices Index including housing costs as its benchmark for inflation.
  • (20) Material effects included lower %ash (approximately 2%) in the femora and tibiae as well as in the humeri of suspended mice compared to controls.

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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