今夏蚊子热得“咬不动了”吗？事情的真相是这样的……

最近天气酷热，不少北京市民表示，他们感觉今年夏天北京地区的蚊子变少了，不像以前夏天那么“挨叮”了。

蚊子都被“热死”了，这是真的吗？

Beijing residents said they experienced fewer mosquito bites this summer, prompting questions if the mosquitoes had been "burnt to death" due to the extreme heat.

真相可能要让大家失望了。

据北京市疾病预防控制中心消毒与有害生物防制所对全市蚊虫密度的监测，今年蚊虫密度相比去年同期其实是明显增加而非减少，部分市民感觉到今年蚊虫少了，其实是大家在日常生活中被蚊子叮咬的机率降低了，但这并不意味着蚊虫密度的下降。

出现这种现象的原因是，在温度比较高的时候，特别是超出蚊虫适合活动的温度条件时，就会出现“蚊虫叮咬减少”的现象。

The Beijing Center for Disease Prevention and Control reported a noticeable increase in mosquito density this year and said the decrease in mosquito bites experienced by residents is likely due to the hot weather inhibiting mosquitoes' activity.

According to monitoring data from the Beijing CDC's disinfection and pest control institute, mosquito density in the city has risen significantly this year, especially in early June when several rainfalls created favorable conditions for mosquito breeding, the institute said.

一般来说，蚊虫活动和叮咬比较活跃的区域是20℃-35℃。超出这个温度范畴，温度过高或过低，蚊虫都会受到一定的影响和限制。

结合前期蚊虫监测结果，如果高温的天气条件一解除，较高密度的蚊虫仍会对市民形成一定的叮咬骚扰的危害。

Typically, mosquitoes are most active and prone to bite in temperatures ranging from 20 to 35 C. When the temperature exceeds or falls below this range, mosquito activity is significantly affected.

影响蚊子密度的因素主要是气候和环境，除了合适的气候，还需要适宜的水孳生环境，做好各类环境中水的管理，也能有效降低蚊子的密度与叮咬。

为此，仍应当注意自己身边环境中各种水体的管理。