Where can I check the pollen concentration in Beijing?

Under the guidance of experts from Peking Union Medical College Hospital, Beijing Meteorological Bureau carried out pollen monitoring. And in the "22 1" and "268" telephone alert service desks, a column of "city weather" was set up to provide services for the general public and patients with pollen allergy, so that people could know how to effectively prevent and treat pollen allergy.

Pollen is most abundant every day between 10 and 2 pm. If you are allergic to pollen, it is recommended to avoid going out at this time, close the doors and windows or turn on the air conditioner to reduce pollen entry.

The concentration, occurrence, dustfall and diffusion of pollen in the air are closely related to the changes of some meteorological factors, mainly affected by temperature, wind speed and rainfall. Humidity and clouds also affect the concentration of pollen.

In the pollen season, the higher the temperature, the stronger the light, which is more conducive to the maturity and formation of plant pollen. Usually, dry, warm and sunny weather will cause high pollen concentration, while clouds and rain will cause low pollen concentration, because in rainy days, the air is humid, tiny pollen particles are easy to settle or be washed away by rain, and the number of pollen in the air is greatly reduced.

Wind has a great influence on pollen concentration. Wind is beneficial to the spread and dissipation of pollen. When there is a certain wind speed, pollen can spread into the air with the wind, which increases the pollen concentration. But when the wind speed is strong, the wind can disperse the pollen, and the pollen concentration will decrease.

Extended data:

Shanghai

Shanghai adopts a four-level forecasting mechanism and publishes information to the public online every day.

Low, medium, high and extremely high, these four grades indicate that the pollen concentration will increase step by step. When the level reaches a high concentration level, patients with mild allergies need appropriate protection, and patients with severe allergies should pay special attention. At present, this forecast result is published online every evening to predict the pollen concentration of the next day for public reference.

Pollen concentration monitoring began in 2006. As far as Shanghai is concerned, spring and autumn are the periods of high pollen concentration. Among them, taking spring as an example, pollen allergy is most likely to occur from the middle and late March to the beginning of June. At present, people can only get information through the website of Shanghai Urban Environmental Meteorological Center.

Tianjin

Every March 1, the municipal meteorological department will start to release the pollen concentration forecast and monitor the actual situation. Ordinary people can learn about the future pollen concentration level in this city and its impact on human health through radio, television, newspapers, internet and other media, and make various preventive preparations in advance.

Tianjin Meteorological Bureau has been carrying out pollen concentration forecasting for 10 years. At present, a complete pollen forecasting service system platform has been established, and the integration of pollen data transmission, concentration forecasting, prevention and control measures and other services has been realized. At the same time, from March 1 to March 10 to March 3 1 every year, the meteorological department also cooperates with the health department to realize data sharing and provide scientific basis for doctors to accurately diagnose patients' conditions.

References:

Beijing Pollen Concentration-China Weather Network