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Chemical and biological health hazards and risk control
Published in Phil Hughes, Ed Ferrett, Introduction to Health and Safety in Construction, 2015
Solvents are used extensively in a wide variety of industries as varnishes, paints, adhesives, glue strippers, printing inks and thinners. They are highest risk when used as sprays. One of the most hazardous is dichloromethane (DCM), also known as methylene chloride. It is used as a paint stripper, normally as a gel. It can produce narcotic effects and has been classified as a Category 3 carcinogen in the European Union. The minimum personal protective equipment requirements are impermeable overalls, apron, footwear, long gloves and gauntlet and chemically resistant goggles or visor. Respiratory protective equipment is also required if it cannot be demonstrated that exposure is below the appropriate workplace exposure limit (WEL).
Integrating organic chemical-based socio-scientific issues comics into chemistry classroom: expanding chemists’ toolbox
Published in Green Chemistry Letters and Reviews, 2021
Jeongho Cha, Hak Bum Kim, Su-Yin Kan, Wen Yu Foo, Xue Yi Low, Jing Yi Ow, Prasana Devi Bala Chandran, Gaik Ee Lee, Jean Wan Hong Yong, Poh Wai Chia
In the students’ reflective essays, students also expressed their level of satisfaction towards the implemented activity. Some participants’ comments were included here: This activity is interesting, and I hope the course instructor will keep this activity for the future class. [Student 1]In my opinion the most precious things that I’ve learn in this course is the knowledge in handling the chemical. Both chemical in the laboratory and chemical that we always used in daily life. Since my parent run the businesses that involved certain dangerous chemical like WD 40 and VOCs household product like paint, paint stripper, aerosol spray, and so on, it makes me felt more interesting in this course, so I can remind my parent and myself also to become less ignorant and be more aware with the chemicals we are dealing with because I’ve learned so many bad effect if we do not handle it properly. Besides that, this topic motivate me to become a good and knowledgeable chemist in the laboratory rather than a chemist that only mastering in calculation and theory. [Student 17]I really enjoyed the activity, thanks Dr. Chia! [Student 19]In short, I enjoyed the process creating the comic yet it may be frustrating and baffling as well but in the end I gain some knowledge and experience which will bring me a great impression toward it. [Student 25]