1 . Plastic baby bottles shed microplastics when heated. Should you be worried about its side-effects? We still don’t have enough evidence of health risks posed by microplastic consumptions by infants or adults.
“The last thing we want to do is unduly alarm parents,” said John Boland, a professor at Trinity College Dublin in Ireland and one of the authors of the Nature Food study. While the health effects of microplastics are still unknown, parents can significantly reduce their infants’ exposure by adding some steps to their bottle preparation routine, Boland said. He recommends letting plastic bottles cool completely after sterilization(消毒) in hot water, then washing them out at least three times with water that’s been allowed to cool to room temperature after being sterilized by boiling. Researchers here also found that plastic tea kettles, plastic instant noodle cups and plastic food storage containers all released similarly high levels of microplastics when subjected to heat.
As for what those microplastics may be doing in our bodies, the evidence so far is quite limited and unclear, Schwabl said that points to a need for more research into microplastics released from plastic food storage containers, especially when they are subjected to higher temperatures. He noted some research has found microplastics can cause inflammation(发炎) in the organs, while other studies “show they do not harm.” “The threshold at which they cause problems has not been determined for humans,” Schwabl said. For now, Schwabl agrees we shouldn’t panic. He’s avoiding plastic containers in his daily life – “not so much that I am afraid of the ingestion, but I think thereby I may be contributing to reducing the amount of plastic waste” that makes its way into the environment.
At the moment, there is no need to be afraid, but it is an open question and definitely an unmet need.
1. What does the underlined word “unduly” mean in paragraph 2?| A．Properly. | B．Extremely. | C．Obviously. | D．Specially. |
| A．Temperature. | B．Products. | C．Time. | D．Containers. |
| A．Panic. | B．Caring. | C．Indifference. | D．Critical. |
| A．By providing the examples. | B．By reasoning the readers. |
| C．By analyzing the figures. | D．By comparing the findings. |
