Respiration indicators

Respiration of the developing peanut is very rapid during fat synthesis but declines before maturity (72) studies of respiration indicate another decline about 8—10 hours after the harvest of peanuts (73). 

E) Knapweed may have an indirect effect on other plants because it may modify the soil microbial environment to its advantage. However, studies on soil respiration indicated that there is no obvious enhancement or inhibition of soil microorganisms in the root zone of knapweed. 

Community respiration varies over the same range as gross production the two are positively correlated (Table 2.2). Communities or bottom types with high production tend to exhibit high respiration, indicating much of the respiration of organic material occurs within the habitat, or more probably within the... 

This leaves only periodic respiration. At present this is the main and only support for the hypothesis of a depression of the respiratory center by morphine. Periodic respiration indicates a definite interference with the activity of the respiratory neurons. It may be that periodic respiration will force a retention of the center depression theory, but periodic respira-... 

CFR1910.134(k)(5)(ii) 4.4.6.2 Inadequacies in the employee s knowledge or use of the respirator indicate that the employee has not retained the requisite imderstanding or skill. 

Additionally, OSHA s training provisions contain a variety of specific requirements related to employee comprehension. For example, 1910.147(c)(7)(i) (Lockout/Tagout) requires the employer to verify that the employees have [ acquired ) the knowledge and skills which they have been trained 1910.134(k)(5)(ii) (Respiratory Protection) requires retraining when inadequacies in the employee s knowledge or use of the respirator indicate that the employee has not retained the requisite understanding or skill ... 

Air Pollution. Particulates and sulfur dioxide emissions from commercial oil shale operations would require proper control technology. Compliance monitoring carried out at the Unocal Parachute Creek Project for respirable particulates, oxides of nitrogen, and sulfur dioxide from 1986 to 1990 indicate a +99% reduction in sulfur emissions at the retort and shale oil upgrading faciUties. No violations for unauthorized air emissions were issued by the U.S. Environmental Protection Agency during this time (62). 

Vapor Toxicity. Laboratory exposure data indicate that vapor inhalation of alkan olamines presents low hazards at ordinary temperatures (generally, alkan olamines have low vapor pressures). Heated material may cause generation of sufficient vapors to cause adverse effects, including eye and nose irritation. If inhalation exposure is likely, approved respirators are suggested. Monoethan olamine and diethanolamine have OSHA TLVs of 3 ppm. 

Treatment for acute exposure to benzene vapor involves removing the subject from the affected area, followed by artificial respiration with oxygen intubation and cardiac monitors may be necessary for severe acute exposures (125,127). Because of its low surface tension, benzene poses a significant aspiration hazard if the liquid enters the lungs. Emesis is indicated in alert patients if more than 1 mL of benzene per kg of body weight has been ingested and less than two hours have passed between ingestion and treatment (127). 

The common indices of the physical environment are temperature, pressure, shaft power input, impeller speed, foam level, gas flow rate, liquid feed rates, broth viscosity, turbidity, pH, oxidation-reduction potential, dissolved oxygen, and exit gas concentrations. A wide variety of chemical assays can be performed product concentration, nutrient concentration, and product precursor concentration are important. Indices of respiration were mentioned with regard to oxygen transfer and are particularly useful in tracking fermentation behavior. Computer control schemes for fermentation can focus on high productiv-... 

The lack of limits should not be taken to imply an absence of hazard. In the absence of a specific OEL for a particular dust, exposure should be adequately controlled and where there is no indication of the need for a lower value, personal exposure should be kept below both 10 mg/m 8 hr TWA total inhalable dust and 4 mg/m 8 hr TWA respirable dust. 

Approximate Values in Units of Percent The particle size distribution in a total dust sample is unknown and error in the XRD analysis may be greater than for respirable samples. Therefore, for total dust samples, an approximate result is given. (4) Nondetected A sample reported as nondetected indicates that the quantity of quartz (or cristobalite) present in the sample is not greater than the... 

Assigned protection factor This was not included in the standard. However, the latest documentation indicates that OSHA will eventually add APFs into the standard. For now, employers should rely on the best available information when selecting the appropriate respirator. 

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