A Spare the Air Alert has been called for Sunday for unhealthy levels of smog caused by smoke from Northern California wildfires, along with vehicle exhaust and high inland temperatures.
Exhaust from vehicles combines with wildfire smoke to create unhealthy ozone, or smog, that can trigger congestion, throat irritation and asthma.
The air quality index in every Bay Area region will hover around the 50s and 60s, signaling moderate conditions. An air quality index is moderate if it’s within 51 to 100, and the air becomes unhealthy for sensitive groups if the index rises past that.
Although fine particle pollution concentrations from smoke are not expected to exceed moderate levels on the Air Quality Index, ozone pollution is forecast to be unhealthy.
The Bay Area Air Air Quality District also has issued an Air Quality Advisory through Monday for smoke.
A #SparetheAir Alert for unhealthy levels of smog has been issued for tomorrow, Sunday, Sept. 5, in addition to the air quality advisory for smoke that is in place through Monday, Sept. 6. Limit driving to reduce air pollution. More at https://t.co/wbkYMspD80. pic.twitter.com/9AW9OlUdx8
— Spare The Air (@SpareTheAir) September 4, 2021
Temperatures across the Bay will be warmer than normal this weekend. San Jose will peak in the low-to-mid 80-degree range, with Morgan Hill reaching the low 90s. Inland parts of Alameda and Contra Costa counties will similar hover in the 90s, while Oakland will see highs in the mid-70s.
Although wind speeds are mild, the marine layer off the coast has compressed in the past few days, according to a National Weather Service meteorologist. Because of the warmth of the sun, the marine layer is now 1,000 feet deep, compared with 2,000 feet during cooler days earlier in the week.
“It provides that nice fog in the morning, but once it fades, the marine layer unfortunately doesn’t provide as much relief,” meteorologist Sarah McCorkle said Sunday.
Ozone, or smog, can worsen existing respiratory conditions, including asthma, bronchitis and emphysema, the Bay Area Air Quality Management District said in a release. Long-term exposure can reduce lung functions. The pollution caused by smog is especially harmful for young children and seniors.
“If the smell of smoke is present, it is important that Bay Area residents protect their health by avoiding exposure,” the district said in a release. “If possible, stay inside with windows and doors closed until smoke levels subside, if temperatures allow.”
Crews fighting the Caldor Fire in the Lake Tahoe area advanced containment of the blaze to 37% on Saturday amid more promising weather conditions. The fire has burned more than 214,000 acres, forcing many South Lake Tahoe residents to evacuate and contributing to the air quality woes facing the Bay Area this weekend.
"filled" - Google News
September 05, 2021 at 08:13AM
https://ift.tt/3tlai0T
Smoke-filled smog from wildfires will hurt Bay Area air quality this weekend - Marin Independent Journal
"filled" - Google News
https://ift.tt/2ynNS75
https://ift.tt/3feNbO7
Bagikan Berita Ini
0 Response to "Smoke-filled smog from wildfires will hurt Bay Area air quality this weekend - Marin Independent Journal"
Post a Comment