Warmth bringing out spring blooms -- and pollen

As temperatures rise consistently into the 60s and 70s, spring blooms are bursting around the region -- elevating levels of tree and grass pollen.

Tree pollen -- including cedar, maple, elm, poplar, beech, sycamore, willow and oak -- surged to high levels of concentration Friday, according to readings taken by allergists Drs. Golden & Matz LLC. The tree pollen count hit 620, a measure of the number of pollen spores per cubic meter.

Grass pollen reached a count of 7 and weeds reached 16, both in the moderate range.

The Weather Channel's pollen forecast calls for high concentrations of tree pollen through the weekend. Its calendar of data shows tree pollen started to surge at the beginning of the month.

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