A more recent study suggested that garbage burning “is the main global source of HCl.”Garbage often contains polyvinyl chloride, which emits HCl when burned. The presence of HCl in outdoor air means that ventilation contributes HCl to indoor environments. Indoor HCl also can be generated, in principle, by unvented indoor combustion processes. For example, there…
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A contribution to this finding may be the difficulty of measuring indoor HNO3 at low levels
The geometric mean concentrations were, respectively, 157 nmol/m3 indoors and 139 nmol/m3 outdoors . In the Connecticut and Virginia homes sampled by Leaderer et al., the average fine-particle ammonium concentrations in the summer were slightly smaller for air-conditioned homes, 78 nmol/m3 compared to homes without air conditioning, 97 nmol/m3 , possibly due to lower air-exchange…
Acids and bases that dissolve in flowing water would be removed via associated drains
The toilet and two traps together hold ~ 6.5 L of water, but only a fraction of this water is likely equilibrated with room air. The shower surfaces are periodically wetted, typically once or twice per day. The sink basins are also wetted periodically and more frequently than the shower stall surfaces. Fabrics associated with…
The difficulty in obtaining an accurate and reliable rating of housing condition is a limitation of this study
In the 1999 to 2001 Center for the Health and Assessment of Mothers and Children of Salinas , a longitudinal birth cohort study of families in a largely agricultural area, the median level of the pregnant adult women in an agricultural community was below the LOD of 0.1 ug/g creatinine . The 2007 to 2009…
Approximately 16 % of the HIV+ men in this study reported decreasing their marijuana use over time
The current study found that a HIV+ status was associated with membership in the decreaser, increaser and chronic high marijuana trajectory groups, a finding that suggests that overall HIV+ MSM in the MACS were more likely to use marijuana as compared to HIV− MSM. This finding is consistent with a number of studies reporting higher rates of…
There are no published reports of the detection of this compound in postmortem toxicology cases
A similar pattern was demonstrated in a clinically relevant model of pneumococcal pneumonia after antibiotic treatment,and other animal models have also shown that cigarette smoke increases alveolar epithelial-capillary permeability and susceptibility to lung injury.The relationship between cigarette smoking and COVID-19, which in 2020 was the leading cause of ARDS in the United States,is unclear. There…
Shelters may provide a more stable environment than unsheltered environments to engage in smoking cessation
To assess the prevalence of depressive symptomatology or significant distress, we administered the Center for Epidemiologic Studies Depression Scale .We used a standard threshold score of 16 or more to categorize depressive symptomatology or significant distress.We described sample characteristics and reported smoking and quitting behaviors from the enrollment interview using means for continuous variables and…
Substance use is a public health concern because it contributes to disease and mortality
These results provide strong support for future research that evaluates the role of movement therapies such as tai chi in reducing risk of falls, mobility-related disability and frailty occurrence in older PLWH. This study has several strengths. This is the first study, to our knowledge, employing a multi-component behavioral intervention to address both chronic pain…
How Do Indoor Vertical Farms Get Their Seed
Indoor vertical farms typically obtain their seeds from various sources. Here are some common methods for acquiring seeds for indoor vertical farming: When selecting seeds for indoor vertical farming, growers consider factors such as crop characteristics, growth habits, disease resistance, taste, and market demand. They also evaluate the compatibility of specific seed varieties with the…
Commercial Cannabis Cultivation Rooms
Designing commercial cannabis cultivation rooms requires careful planning and attention to various factors to ensure a successful and efficient operation. Here are the key considerations for designing commercial cannabis cultivation rooms: Remember to consult with professionals experienced in cannabis cultivation facility design and comply with local laws and regulations governing the cannabis industry.