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Assessing the impact of device parameters on electronic cigarette aerosol dynamics: Comprehensive analysis of emission profiles and toxic chemical constituents.

Sci Total Environ

January 2025

Department of Environment & Energy, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeonbuk State 54896, Republic of Korea; School of Civil, Environmental, Resources and Energy Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeonbuk State 54896, Republic of Korea; Soil Environment Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeonbuk State 54896, Republic of Korea. Electronic address:

The toxicity of electronic cigarette (EC) aerosol is influenced not only by the type of e-liquid but also by various operational parameters of the device used to vaporize it. In this study, we utilized a flask and heating mantle system, instead of a conventional EC device, to systematically evaluate the effects of EC device operational parameters, including vaporization temperature, airflow rate, and the materials of coils and wicks, on the generated mass of EC aerosol and the production of toxic carbonyl compounds. The results demonstrated that these parameters significantly impact aerosol mass and toxicant composition.

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. Stringent regulations restricting tobacco access to those under 21 are in place, yet young people continue accessing tobacco products. This study aimed to assess the knowledge, opinions, resource utilization, and training needs of tobacco retailers in terms of preventing underage tobacco sales.

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In Canada studies on the presence of trace organic contaminants (TrOCs) such as pharmaceuticals, personal care products, pesticides and flame retardants in lakes have primarily focused on the water column at localized scales. To address this gap, the occurrence of 44 TrOCs, representative of various types of human activities, was investigated in surface sediments (0-2 cm) from 193 lakes across Canada. A total of 28 targeted TrOCs were detected, with 99.

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Background: Early life stress (ELS) increases the risk of substance use disorder (SUD) in adulthood. The pathway from ELS to SUD is hypothesized to be influenced by sex. We examine the impact of ELS on adolescent first substance use, a common precursor to adult SUDs, and test for sex differences in the relationship between ELS and risk of first use of alcohol, nicotine, and marijuana.

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The bidirectional relationship between pain and tobacco use: Insights from the longitudinal Population Assessment of Tobacco and Health (PATH) study.

Drug Alcohol Depend

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Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States; VA Connecticut Healthcare System, West Haven, CT, United States; Clinical Neuroscience Research Unit (CNRU), Connecticut Mental Health Center (CMHC), New Haven, CT, United States. Electronic address:

Background: Tobacco smoking remains the leading preventable cause of death, whereas chronic pain is the leading cause of disability. Chronic pain and tobacco smoking are closely interrelated. We investigated whether pain predicts daily cigarette smoking and if daily cigarette smoking predicts the development of pain.

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