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Hamilton ‘definitely’ has higher levels of allergy-causing pollen compared to last 4 years: experts
Why are pollen allergies worse in Canada this year? The 2021 count for the city is about three times last year’s measurements and almost double 2019 and 2018, which had readings of 7,785 and 7,632 grains per cubic metre, respectively.“You definitely are seeing a lot more pollen in Hamilton, but it doesn’t necessarily ring true for the entire GTA Toronto itself,” Coates said.“There’s a lot of birch, pine and oak pollen floating around in the GTA, but throughout this year in May only at around 8,000 grains compared to Hamilton, which is over 11,000.”Montreal saw a comparable number to Hamilton in May, recording 10,407 grains per cubic metre, while Toronto hit 7,790, Ottawa 8,544 and Vancouver just 2,059.Allergist, clinical immunologist and