a number that shows the amount of pollen in the air, used to warn people whose health is affected by it 花粉计数（用于警示花粉过敏者空气中花粉的含量） Hay fever sufferers should check the pollen count every day. 花粉症患者应每天检查花粉计数。 The pollen count is very high in the spring. 春天的花粉计数非常高。