As temperatures climb across northern China, willow and poplar catkins are expected to fill the air, raising seasonal concerns during the Qingming Festival holiday this week, weather officials said on Tuesday. 氣象部門週二表示，隨著華北地區氣溫回升，預計本週清明節期間楊柳花絮將飄散，引發季節性關注。 Huang Zhuo, deputy director of the National Meteorological Center, said the Beijing-Tianjin-Hebei province region, as well as Shandong province and Shaanxi province, will enter peak shedding periods for white poplar and weeping willow catkins in early April, affecting public health and daily activities. 國家氣象中心副主任黃卓表示，京津冀地區以及山東、陝西省將在4月初進入白楊和垂柳花絮飄散高峰期，對公眾健康和日常活動產生影響。 Catkin season typically runs from late March to early May, with weather playing a crucial role in their release. Rising temperatures, strong sunlight and dry air accelerate the maturation and dispersal of catkins, Huang said. 楊柳絮季節通常從3月下旬持續到5月上旬，天...