From a study conducted in Munich, Scherer et al. reported mean concentrations of nicotine in the living room at about 4 µg/m3 in 20 smokers’ homes, about 200´ as large as the mean for ten nonsmoking homes. Matt et al. used passive samplers to measure gas-phase nicotine concentrations in San Diego County homes with infants of mothers […]
Tag: cannabis grow
Empirical data on indoor concentrations of and personal exposure to aerosol strong acidity are sparse
We just don’t know enough about either population exposures or exposure-response relationships to make a satisfactory risk assessment.”Scientific knowledge about this subject improved considerably during 1985-1995 and has continued to advance during the past few decades. We can now outline major features of the system, such as what are the causes, nature, and levels of […]
Carboxylic acids have the chemical composition R-COH
The release of chloroform from indoor use of chlorinated drinking water along with associated exposures has been extensively studied. For example, Weisel et al. measured chloroform in exhaled breath following showering among 49 female subjects throughout New Jersey. They found systematically and substantially higher chloroform exhaled from subjects who had elevated water levels of THMs. Nuckols […]
The largest source of atmospheric SO2 is coal combustion
Although the above cited studies have discussed the product of gaseous nitric acid and ammonia concentrations as a test of equilibrium between these gas-phase species and particulate NH4NO3, in indoor environments the mass of NH4NO3 accumulated on surfaces is anticipated to be much larger than the mass associated with indoor airborne particles. The complicating features […]
A recent study provides new clues about sorbed water in indoor surface films
Rowen and Blaine50 reported apparent surface areas on such a comparative basis. The specific surface areas for the two sorbates were comparable for titanium dioxide. However, for nylon and for wool specific surface areas were much larger for sorbing water as compared to N2. With dynamically changing indoor humidity conditions, an important consideration for sorptive […]
Primary trial findings and full study procedures were previously published
In an initial safety and efficacy trial, ibudilast improved mood resilience following stress exposure and reduced tonic levels of craving . Mood resilience was defined as a faster recovery of positive mood to baseline levels in the treatment condition following exposure to a stressful personal narrative. However, as noted above, ibudilast did not robustly alter […]
Vaping has been linked to various rare pulmonary conditions and pathologic abnormalities
Patients receiving methadone were required to attend a clinic daily to obtain medication following regulations regarding methadone dispensing and thus were more regularly in contact with the clinic personnel, which likely enhanced treatment engagement. Conversely, buprenorphine patients were not required to attend the clinic daily, given the nature of buprenorphine self administration without supervision. Another explanation […]
CBIs also have the potential to be more cost effective than face-to-face interventions
Although synthetic cannabinoids have been associated with sudden death in the USA and abroad, the exact physiological mechanisms for causation, or initiators to contributing factors, remain unclear. In Case 1, a possible anaphylactic etiology was ruled out by the forensic pathologist. Sudden onset cardiac dysrhythmias or seizure suggest plausible mechanisms. In contrast, Case 2 presented […]
Thirty-five percent of the women in this sample were born outside of the United States
Comparisons using data from birth certificate records included race/ethnicity, maternal age, education, payment for delivery, participation in the Women, Infants, and Children program , parity, maternal birthplace, report of smoking during pregnancy, maternal body mass index , trimester when prenatal care began, and number of prenatal care visits.For multi-parous women, we examined the relationship between preterm […]
Hyper connectivity may be attributable to age differences between the two studies
In a follow-up study taking a multivariate factor analytic approach, Jones et al. found schizophrenia PRS was significantly associated with multiple psychopathology factors . However, these specific effects vanished when including a general psychopathology factor, suggesting that psychopathology during adolescence may be explained with one broad factor. PS during adolescence are rather non-specific and pose risk […]