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Scents Are Not What They Seem II

Scents Are Not What They Seem II

This article was written in year of 1997 by Karen Robinson. It is a very good unbiased article on scents for us nowadays and in the future.  This article is long, for everyone’s easier reference, we put it into a serial form.  Please feedback us with your thoughts and ideas should you have any.  

Fragrance Chemicals as Toxic Substances

In 1989 the US National Institute of Occupational Safety & Health (HIOSH) identified 884 of 2,983 fragrance chemicals as toxic substances.  Some of these were capable of causing birth defects, central nervous system disorders, cancer, eye and skin symptoms, and actually causing broad chemical sensitization (Multiple Chemical Sensitivity). 
  

Examples of toxic ingredients are:

Cyclohexanol, when inhaled it has a narcotic effect intermediate...

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Scents Are Not What They Seem I

Scents Are Not What They Seem I

This article was written in year of 1997 by Karen Robinson. It is a very good unbiased article on scents for us nowadays and in the future.  This article is long, for everyone’s easier reference, we put it into a serial form.  Please feedback us with your thoughts and ideas should you have any.  

Recently, a woman purchasing some vitamins at a scent-free health store handed paper money to the clerk, saying, “I spray my money with my perfume. It adds a nice touch, don’t you think?”

The clerk, who suffers form chemical hypersensitivity, did not think so.  She experienced headache, weakness, brain fog and other symptoms as a result – but it could have been worse!

“Perfumery” 


The volatility of fragrances is highly specialized.  Traditional perfumery has three “notes” or levels of...

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What is Green Home or Healthy House?

What is Green Home or Healthy House?

World Health Organization (WHO) definition of Health - “Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.”  Therefore, Green Home or Healthy House is referring to the home or house, which can make residents, be a state of complete physical, mental and social well-being.  Being more specific, there are some basic standards of Green Home or Healthy House.

  • Less chemical substances leading to allergy;
  • Do not use plywood and group decoration materials;
  • Chemical equipment has good performance, especially for high air tightness, high thermal insulation.  Must use central ventilation duct system to change air from time to time;
  • Install exhaust system at cooking utensils or smoking area;
  • Keep indoor temperature...
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Indoor Air Safety for Children’s Health

Indoor Air Safety for Children’s Health

According to Environmental Protection Agency, the quality of the air indoors is as much as five times worse than outdoor air. 

Children’ s organs and respiratory, immune and neurological systems are still developing, making them susceptible to the negative affects of poor indoor air quality. 

Children breathe in more of the heavier airborne chemicals than do adults because children are much closer to the ground. 

Infants and young children breathe through their mouths, more so than do adults, which increases their risk of pulmonary exposure to particulates and fibers that would otherwise be filtered out in the nose.

Children have a higher heart rate than adults, which allows substances that are absorbed into the blood to permeate tissues faster.

Therefore, what are the things you...

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Link Heart Attacks to Air Pollution

Link Heart Attacks to Air Pollution

A recent study of 8,000-plus heart attacks in New York City has provided scientists with tangible evidence that breathing in the fine particles common to urban air increases the risk of fatal heart stoppage.

According to Dr. Robert A. Silverman of the Long Island Jewish Medical Center, as particulate matter of pollution increased, so did the number of cardiac arrests.

Previous research had already found a correlation between air pollution to other serious health problems, such as asthma, cardiovascular disease and chronic lung disease.

The specific goal of this new research was to determine if the liquid droplets and tiny particles created by coal power plants and automobile combustion could lead to sudden death from cardiac arrest.

Cardiac arrests account for over 300,000 deaths...

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Demystifying Air Quality Numbers

Demystifying Air Quality Numbers

There are lots of numbers used to describe air quality these days in China. This post is intended as a glossary to demystify the different numbers currently used by various sources.

Concentration
The most direct way to report air pollution would be the concentration of a given pollutant in the air. This is straight-forward science and measurement. Example: PM2.5 concentration is 950 micrograms per cubic meter (ug/m^3).

Although concentration is straightforward scientifically, there are a couple of problems with it from a public outreach perspective. First, not everyone understands what concentration is, or has context for what the numbers mean. Second, it’s difficult to compare different pollutants to each other, since each pollutant affects people differently depending on...

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Three Contributors to Indoor Air Pollution

Three Contributors to Indoor Air Pollution

Indoor air quality investigations have identified the three major contributors to indoor air pollution inside homes, in schools and at workplaces.  They are:

  • Volatile Organic Compounds (VOCs) gases 
  • Biological Contaminants
  • Heating, Ventilating, Air Conditioning (HVAC) systems

Volatile Organic Compounds or VOCs are invisible chemical gases released into the air at room temperature from products made with VOC chemicals.  Many building and decorative products used in homes, schools and workplaces are manufactured from materials containing VOCs, which are released when used and when they are stored.

Formaldehyde (CH2O) is a VOC that is widely used as an ingredient to make other chemicals, building materials, household and personal care products.  It is also a by-product of...

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