Course Outline for Teaching Undergraduates about Toxicology and the Safe Handling of Chemicals

Pence, Harry E.

doi:10.1021/acs.jchemed.0c00154

Cited by 2 publications

(2 citation statements)

References 8 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present laboratory exercise was designed for graduate and postgraduate students in subjects related to Soil Science and especially for the study of genesis and sustainability of an optimal structure in different soils. Generally, students (and teachers also) from the Agricultural Engineering or Environmental Sciences degrees have easy access to enough information about Soil Chemistry practice exercises related to environmental aspects such as soil pollution or toxicology. − However, information about soil physics is scarce, with only a few reports about laboratory exercises with soil texture . Therefore, the present laboratory exercise contributes with a topic of especial importance for understanding soil science concepts.…”

Section: Introductionmentioning

confidence: 99%

Investigating Flocculation Capacities of Different Cations and Their Implications for Soil Structure and Sustainability

2020

View full text Add to dashboard Cite

A laboratory exercise was developed for the study of the effect of three cations (Al, Ca, and Na) on the flocculation and dispersion of soil particles. The exercise was designed for Soil Science undergraduate students in the second-course in the Agricultural Engineering and Environmental Sciences department at the University of Vigo. The students' exercise consisted of the addition of different concentrations of NaCl, CaCl 2 , or AlCl 3 to a kaolinite water suspension and to an agricultural soil water suspension (a more complex system). The most relevant results showed that for the same cation concentration (equiv L -1 ), the effects on increased flocculation of colloidal material followed the sequence Al > Ca > Na, for both kaolinite and agricultural soil; that is, aluminum is the cation with the highest flocculation capacity, while Na is the cation with the lowest one. These differences are important for the sustainability of agricultural soils, since flocculation in soil systems is a key factor to sustain a suitable soil structure, and therefore, for suitable air and water fluxes in soils. Moreover, the differences in flocculation capacities of different cations should be taken into account in the fertilization programs during the selection of fertilizers (in relation to composition), in order to avoid irreversible problems for the soil structure. The experimental results obtained by students were highly satisfactory, showing experimental values similar to those previously found by the teachers. According to postlab surveys, the students were highly satisfied and in favor of the laboratory exercise developed from both sides, the didactic point of view and the importance of the exercise for the understanding of soil science concepts.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigating Flocculation Capacities of Different Cations and Their Implications for Soil Structure and Sustainability

2020

View full text Add to dashboard Cite

show abstract

“…Chemical safety is an important pillar of practicing chemistry and should be a critical part of chemistry education. , In recent years, chemical safety education has transformed from rule-based training to knowledge-based risk management instruction, and the safety curriculum is increasingly integrated into the chemistry curriculum. − To support this important transition, there is a need to further develop new approaches to teaching chemical safety that are grounded in learning theories and best practices. − For example, employing a constructivist approach to teach safety is preferred over a traditional behaviorist rule–reward system.…”

Section: Introductionmentioning

confidence: 99%

Framework for Teaching Safety Case Studies Using a Risk Management Approach

2021

View full text Add to dashboard Cite

Real-world safety case studies provide concrete examples of episodes that can be both instructive and memorable for students. We describe here a framework for teaching safety case studies using the RAMP risk management approach. Structured templates guide students to Recognize the hazards present, Assess the associated risks, and consider what risk Minimization and Preparation for emergencies steps were appropriate. The student is then guided to consider what RAMP steps were, or might have been, inadequately addressed. The process culminates with a root cause analysis that examines probable causes of the incident. This guided inquiry framework allows students to gain an understanding of risk management and reiforces the importance of the decision-making process for safety. The Supporting Information for this paper includes the templates, student instruction for the four parts of the process, an instructor’s guide, three examples of the process, and other resource material.

show abstract

Course Outline for Teaching Undergraduates about Toxicology and the Safe Handling of Chemicals

Cited by 2 publications

References 8 publications

Investigating Flocculation Capacities of Different Cations and Their Implications for Soil Structure and Sustainability

Investigating Flocculation Capacities of Different Cations and Their Implications for Soil Structure and Sustainability

Framework for Teaching Safety Case Studies Using a Risk Management Approach

Contact Info

Product

Resources

About