Hazardous substance restrictions: And why they are restricted

Author(s):  
Dan Roman ◽  
Craig Harvey ◽  
Lauren Hutchison
Keyword(s):  
Author(s):  
M. V. Bidevkina ◽  
M. I. Golubeva ◽  
A. V. Limantsev ◽  
I. N. Razumnaya ◽  
T. N. Potapova ◽  
...  

Sodium lauryl sulfate is the most common surfactant used in the production of detergents, chloroprene rubber, plastics, artificial furs and in pharmaceutical industry. Sodium lauryl sulfate is a moderately hazardous substance when introduced into the stomach (DL50 for white mice and rats is in the range of 2086-2700 mg/kg), has a pronounced local irritant effect on the skin and mucous membranes of the eyes, has a skin-resorptive, sensitizing and pronounced cumulative effects. The threshold for acute inhalation action is set at 15,3 mg/m3 for changes in the function of the nervous system and irritating effects on the mucous membranes of the upper respiratory tract (an increase in the total number of cells in the nasal flushes).Recommended for approval tentative safe exposure level of sodium lauryl sulfate in the air of the working area is 0.2+ mg/m3 (aerosol).


2021 ◽  
pp. 088626052110219
Author(s):  
Matthew M. Yalch ◽  
Sloane R. M. Rickman

Intimate partner violence (IPV) is a common problem for women in the United States and is associated with symptoms of post-traumatic stress disorder (PTSD) as well as hazardous use of substances like alcohol and drugs. However, not all subtypes of IPV (i.e., physical, sexual, and psychological) are equally predictive of PTSD and hazardous substance use. Although previous research suggests that psychological IPV has the strongest relative effect on PTSD symptoms and substance use, there is less research on IPV subtypes’ cumulative effects. In this study, we examined the relative and cumulative effects of physical, sexual, and psychological IPV on PTSD symptoms and hazardous substance use in a sample of women in the United States recruited via Amazon’s Mechanical Turk ( N = 793) using bootstrapped multiple regression and configural frequency analyses. Results suggest that physical IPV had the most pronounced influence (medium-large effect sizes) on substance use across women, but that the cumulative effects of all three IPV subtypes were most closely associated with diagnostic levels of both PTSD and substance use at the level of groups of women. These findings clarify and extend previous research on the differential effects of IPV subtypes and provide directions for future research and clinical intervention.


1984 ◽  
Vol 106 (3) ◽  
pp. 279-284 ◽  
Author(s):  
Y. Bai ◽  
W. Johnson ◽  
R. G. M. Low ◽  
S. K. Ghosh

When an oil tank collapses or ruptures any contained hazardous substance flows outwards and can damage nearby plant or people as well as lead to pollution of the local environment. In recent years, this and similar subjects have given rise to a new kind of engineering—spill prevention and control. However, theoretical background, backed by experiment, is lacking to work out reliable regulations. An intermediate-asymptotic analysis for late-stage spreading is carried out in this paper. This analysis reveals several characteristic features of the spill wave such as transition period and linear relationships between spreading area and time, and wave front velocity and the inverse of zone radius. Most of the latter results have been verified by model experiment. This paper also discusses the discrepancies between observations and the theory suggested in a recent UK Health and Safety Executive report. Finally, the present paper puts forward proper modeling rules for future work.


2021 ◽  
pp. 127058
Author(s):  
Hassan Karimi-Maleh ◽  
Fatemeh Karimi ◽  
Li Fu ◽  
Afsaneh L. Sanati ◽  
Marzieh Alizadeh ◽  
...  

Author(s):  
Sri Nanda G ◽  
Balaji S ◽  
Khayati Moudgil

Poison is known as a toxic and hazardous substance that is capable of causing illness to the living organisms. It can lead to some fatal outcomes. Self-harming has become a global issue, which is a burden on society. Every year millions of people die due to the consumption of toxic compound and leaving their loved ones behind in grief. The prospective pilot study was performed on a small scale for a period of three months. Each type of poison case admitted to Intensive care unit for the three months from July 2018 to September 2018 were taken into consideration. The informed consent has been obtained from all the patients, whereas demographics details of the patient were obtained using a predesigned data collection form. During the study period, 37 cases of poisoning were reviewed. The incidence is found to be more in males 28 (75.6%) when compared to females 9 (24.3%). Our study results showed that pesticides are the major reason for poisoning with an intention of self- harming. Majority of the poisoning cases were seen in the age group of 21-30 where physical and mental stress is the major reason.


Author(s):  
Michał SILARSKI

The ever-increasing risk of terrorist attacks is a stimulus for seeking new, more effective danger detection methods. The article describes new methods of detecting hazardous materials based on the interaction between neutrons and matter. The status of the design of the device for detecting hazardous materials in water environments based on these methods, currently in development at the Jagiellonian University (Kraków, Poland), will be presented as well.


Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1313 ◽  
Author(s):  
Jonovan Van Yken ◽  
Naomi J. Boxall ◽  
Ka Yu Cheng ◽  
Aleksandar N. Nikoloski ◽  
Navid R. Moheimani ◽  
...  

Electronic e-waste (e-waste) is a growing problem worldwide. In 2019, total global production reached 53.6 million tons, and is estimated to increase to 74.7 million tons by 2030. This rapid increase is largely fuelled by higher consumption rates of electrical and electronic goods, shorter life cycles and fewer repair options. E-waste is classed as a hazardous substance, and if not collected and recycled properly, can have adverse environmental impacts. The recoverable material in e-waste represents significant economic value, with the total value of e-waste generated in 2019 estimated to be US $57 billion. Despite the inherent value of this waste, only 17.4% of e-waste was recycled globally in 2019, which highlights the need to establish proper recycling processes at a regional level. This review provides an overview of global e-waste production and current technologies for recycling e-waste and recovery of valuable material such as glass, plastic and metals. The paper also discusses the barriers and enablers influencing e-waste recycling with a specific focus on Oceania.


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