Up to 20 19, 10, we have investigated 526 children (age 18) and received 553 "o-benzene exposure risk" assessment reports. The results showed that 22 1 child (42%) had high "o-benzene exposure".
Even in the extraordinary year of 2020, our research has not been shelved. During this year, we received 524 children and 539 reports on phthalate detection. As a result, 247 children (47%) were highly exposed to phthalates.
That is to say, almost five out of every 10 children have a high exposure to o-benzene, and even 1 0 children's exposure to o-benzene is 1.5 times higher than that of HBGV, which may affect their health.
Compared with 20 19, the survey results in 2020 show that the proportion of children facing "o-benzene risk" has increased by 5%. Although this 5% is not necessarily statistically significant, it also shows that the status quo of "o-benzene risk" has not improved.
In order to explore the reasons for the data change, we further analyzed the proportion of "children of different ages" facing the risk of o-benzene
The results show that although the proportion of "o-benzene risk" in other age groups has decreased, the proportion of primary school students facing "o-benzene risk" has increased by 1 1%, showing an overall upward trend.
We further analyzed the proportion of primary school students of different sexes facing "o-benzene risk". The results are clear at a glance, and primary school girls need more attention. Compared with 20 19, the proportion has increased by 15%.
Although we try our best to popularize science for everyone, many parents still don't understand the harm of "o-benzene".
This is an environmental estrogen, which will interfere with the human endocrine system. In addition to easily causing abnormal embryonic development and feminization of boys, it may also cause problems such as precocious puberty in girls, which may also be a major reason for the increase in the number of precocious puberty in children today.
What's more troublesome is that the effect of o-benzene on the body can't be known to the naked eye in the early stage. Only through scientific testing can we find out whether the intake exceeds the tolerance of the human body. Once it exceeds the limit for a long time, it will be really late when the harm is visible to the naked eye!
At that time, it is not only the children's bodies that are hurt, but also the psychological pressure they face. They may have different degrees of psychological barriers because of their uniqueness.
What's more troublesome is that o-benzene can't be solved by ventilation like formaldehyde, nor can it be washed off with water. It has a high concentration and a high boiling point, and it is difficult to volatilize or migrate to zero. Even if you buy second-hand things, you need to pay attention.
We have exposed the wallpaper and floor leather posted at home; There are also desk mats, book covers, erasers, pencil cases, skipping ropes, etc. What children frequently come into contact with every day is the hardest hit area of o-benzene.
* Annex XVII of EU REACH Regulation: Phthalates (DEHP, DBP, BBP, DIBP) are used alone or in any combination, and articles with a concentration of 0. 1% (weight percentage) shall not be put on the market.
In addition, there are many unexpected sources of o-benzene risk.
For example, the children's balance car exposed by CCTV some time ago, o-benzene and heavy metals seriously exceeded the standard.
Even recently, we found that many hot water bottles used by children to keep warm have not escaped the claws of o-benzene.
O-benzene in warm water bag:
Like this electric hot water bottle around 10-40 yuan, the waterproof cloth that can be touched inside is the hardest hit area of o-benzene.
(If the surface of the electric hot water bottle is covered with a layer of irremovable cashmere cloth, it is relatively safe because the inner waterproof cloth does not touch hands. )
There is also an ordinary hot water bottle with a PVC label like this, which also contains o-benzene.
This kind of hot water bottle with excessive o-benzene often ends up with more o-benzene because of its long hand contact time and high temperature.
Traditional rubber hot water bottles, as well as exquisite silicone hot water bottles, generally do not contain o-benzene, so they are relatively safe to use.
With the exposure of the problem of over-standard o-benzene in commodities, in April this year, the state also intended to include o-benzene in the list of key chemicals (the second batch) for strict control, but for various reasons, o-benzene was not included in the list.
Therefore, it is necessary to rely on the efforts of parents to stay away from o-phenylenediamine as much as possible and prevent children from excessive exposure to o-phenylenediamine. While raising the awareness of prevention of o-benzene, children can also be protected by these methods.
* Many PVC will use risky o-benzene as plasticizer, although some use environmentally friendly plasticizer, but this must go through professional laboratory appraisal. Ordinary consumers can't tell the difference, so it is recommended to use less PVC plastic. In addition, there are many substitutes for PVC, some of which are even cheaper than PVC.
2. Teach children to wash their hands frequently and don't grab food with their bare hands.
* A small amount of o-benzene will be inhaled by the human body in the form of particulate matter, but it is generally harmless. The skin's absorption of o-benzene is also very low, but children don't like to wash their hands, often grab food with their hands, or lick their fingers directly, which is very risky.
In addition to these preventive methods, we can also check the children regularly, and by evaluating which risk stage the children are in, we can further investigate the sources of the risks around the children and protect their health.
A simple article may not stir up much waves, but even if it can help a child stay away from the risk of o-benzene, our efforts are worth it. At the same time, everyone who sees this place is invited to take action together. Maybe a casual sharing will change a child and a family.
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