Clifford H Watson
Biographic Data
| ID | 7701207 |
|---|---|
| NAME | Clifford H Watson |
| GIVEN NAMES | Clifford H |
| FAMILY NAME | Watson |
| SIGNATURE | WATSON C H |
| AFFILIATIONS | Centers for Disease Control and Prevention |
| ORCID | 0000-0003-0480-4092 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 10 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2004 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 0 |
Total and unprotonated (freebase) nicotine content in new types of oral ‘tobacco-free’ nicotine products
Overall, products advertised as higher strength were found to have higher nicotine content than products advertised as lower strength. The measured total nicotine content was either equal to or less than the level stated on the label, except for one product. Although TFN products may not contain tobacco lamina and may lack many harmful chemicals and carcinogens found in conventional smokeless products, freebase nicotine levels in the pouch produc…
Universal smoking machine adaptor for tobacco product testing
This report provides initial evidence that the USMA seals reliably with a variety of tobacco product mouth-end geometries and can be used with existing linear smoking/vaping machines to potentially improve the precision, repeatability and reproducibility of machine smoke yield data. Accurate and reproducible emissions testing is critical for regulating tobacco products
A Low-Cost, High-Throughput Digital Image Analysis of Stain Patterns on Smoked Cigarette Filter Butts to Estimate Mainstream Smoke Exposure
Standard machine smoking protocols provide useful information for examining the impact of design parameters, such as filter ventilation, on mainstream smoke delivery. Unfortunately, their results do not accurately reflect human smoke exposure. Clinical research and topography devices in human studies yield insights into how products are used, but a clinical setting or smoking a cigarette attached to such a device may alter smoking behavior. To be…
PhenX: Agent measures for tobacco regulatory research
The current paper describes the PhenX (Phenotypes and eXposures) Toolkit Tobacco Regulatory Research Agent specialty area and the Agent Working Group's (WG's) 6-month consensus process to identify high-priority, scientifically supported measures for cross-study comparison and analysis. Eleven measures were selected for inclusion in the Toolkit. Eight of these are interviewer-administered or self-administered protocols: history of switching to low…
Analysis of Toxic Metals in Liquid from Electronic Cigarettes
As the technology of electronic nicotine delivery systems (ENDS), including e-cigarettes, evolves, assessing metal concentrations in liquids among brands over time becomes challenging. A method for quantification of chromium, nickel, copper, zinc, cadmium, tin, and lead in ENDS liquids using triple quadrupole inductively coupled plasma mass spectrometry was developed. The method's limits of detection (LODs) were 0.031, 0.032, 3.15, 1.27, 0.108, 0…
Smoking Behavior and Exposure: Results of a Menthol Cigarette Cross-over Study
Our results suggest that mentholation has an effect on measures of smoking behavior and that mouth level nicotine is a useful indicator of between-brand smoke exposure
Mouth-Level Intake of Benzo[a]pyrene from Reduced Nicotine Cigarettes
Cigarette smoke is a known source of exposure to carcinogenic polycyclic aromatic hydrocarbons (PAHs), especially benzo[a]pyrene (BaP). Exposure to BaP in cigarette smoke is influenced by how a person smokes and factors, such as tobacco blend. To determine whether sustained use of reduced-nicotine cigarettes is associated with changes in exposure to nicotine and BaP, levels of BaP in spent cigarette filter butts were correlated with levels of BaP…
Global surveillance of oral tobacco products: Total nicotine, unionised nicotine and tobacco-specific N -nitrosamines
These data have important implications for risk assessment because they show that very different exposure risks may be posed through the use of these chemically diverse oral tobacco products. Because of the wide chemical variation, oral tobacco products should not be categorised together when considering the public health implications of their use
Divergence between strength indicators in packaging and cigarette engineering: A case study of Marlboro varieties in Australia and the USA
Colour can be used to market cigarettes as 'milder', independently of ISO yields and 'Light'/'Mild' descriptors. Banning of 'Light' and 'Mild' brand descriptors may be inadequate to end belief in less harmful cigarettes so long as the tobacco industry remains free to engineer 'mildness' and to use colours, other descriptors and design features to characterise varieties it wants to market as 'milder
Determination of tar, nicotine, and carbon monoxide yields in the mainstream smoke of selected international cigarettes
Analysis of the smoke deliveries suggested that cigarettes from the Eastern Mediterranean, Southeast Asia, and Western Pacific WHO regions tended to have higher tar, nicotine, and CO smoke deliveries than did brands from the European, American, or African WHO regions surveyed
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Determination of tar, nicotine, and carbon monoxide yields in the mainstream smoke of selected international cigarettes
Analysis of the smoke deliveries suggested that cigarettes from the Eastern Mediterranean, Southeast Asia, and Western Pacific WHO regions tended to have higher tar, nicotine, and CO smoke deliveries than did brands from the European, American, or African WHO regions surveyed
Global surveillance of oral tobacco products: Total nicotine, unionised nicotine and tobacco-specific N -nitrosamines
These data have important implications for risk assessment because they show that very different exposure risks may be posed through the use of these chemically diverse oral tobacco products. Because of the wide chemical variation, oral tobacco products should not be categorised together when considering the public health implications of their use
Divergence between strength indicators in packaging and cigarette engineering: A case study of Marlboro varieties in Australia and the USA
Colour can be used to market cigarettes as 'milder', independently of ISO yields and 'Light'/'Mild' descriptors. Banning of 'Light' and 'Mild' brand descriptors may be inadequate to end belief in less harmful cigarettes so long as the tobacco industry remains free to engineer 'mildness' and to use colours, other descriptors and design features to characterise varieties it wants to market as 'milder
Mouth-Level Intake of Benzo[a]pyrene from Reduced Nicotine Cigarettes
Cigarette smoke is a known source of exposure to carcinogenic polycyclic aromatic hydrocarbons (PAHs), especially benzo[a]pyrene (BaP). Exposure to BaP in cigarette smoke is influenced by how a person smokes and factors, such as tobacco blend. To determine whether sustained use of reduced-nicotine cigarettes is associated with changes in exposure to nicotine and BaP, levels of BaP in spent cigarette filter butts were correlated with levels of BaP…
Smoking Behavior and Exposure: Results of a Menthol Cigarette Cross-over Study
Our results suggest that mentholation has an effect on measures of smoking behavior and that mouth level nicotine is a useful indicator of between-brand smoke exposure
Analysis of Toxic Metals in Liquid from Electronic Cigarettes
As the technology of electronic nicotine delivery systems (ENDS), including e-cigarettes, evolves, assessing metal concentrations in liquids among brands over time becomes challenging. A method for quantification of chromium, nickel, copper, zinc, cadmium, tin, and lead in ENDS liquids using triple quadrupole inductively coupled plasma mass spectrometry was developed. The method's limits of detection (LODs) were 0.031, 0.032, 3.15, 1.27, 0.108, 0…
PhenX: Agent measures for tobacco regulatory research
The current paper describes the PhenX (Phenotypes and eXposures) Toolkit Tobacco Regulatory Research Agent specialty area and the Agent Working Group's (WG's) 6-month consensus process to identify high-priority, scientifically supported measures for cross-study comparison and analysis. Eleven measures were selected for inclusion in the Toolkit. Eight of these are interviewer-administered or self-administered protocols: history of switching to low…
A Low-Cost, High-Throughput Digital Image Analysis of Stain Patterns on Smoked Cigarette Filter Butts to Estimate Mainstream Smoke Exposure
Standard machine smoking protocols provide useful information for examining the impact of design parameters, such as filter ventilation, on mainstream smoke delivery. Unfortunately, their results do not accurately reflect human smoke exposure. Clinical research and topography devices in human studies yield insights into how products are used, but a clinical setting or smoking a cigarette attached to such a device may alter smoking behavior. To be…
Total and unprotonated (freebase) nicotine content in new types of oral ‘tobacco-free’ nicotine products
Overall, products advertised as higher strength were found to have higher nicotine content than products advertised as lower strength. The measured total nicotine content was either equal to or less than the level stated on the label, except for one product. Although TFN products may not contain tobacco lamina and may lack many harmful chemicals and carcinogens found in conventional smokeless products, freebase nicotine levels in the pouch produc…
Universal smoking machine adaptor for tobacco product testing
This report provides initial evidence that the USMA seals reliably with a variety of tobacco product mouth-end geometries and can be used with existing linear smoking/vaping machines to potentially improve the precision, repeatability and reproducibility of machine smoke yield data. Accurate and reproducible emissions testing is critical for regulating tobacco products
Medicine (9 works) · Smoking Behavior and Cessation (9 works) · Nicotine (8 works) · Chemistry (6 works) · Environmental health (6 works) · Computer Science (4 works) · Internal Medicine (4 works) · Smoke (4 works) · Air Quality and Health Impacts (3 works) · Business (3 works)