San diego county’s methane problem visible for first time – san diego news from inewsource

The levels near La Jolla were elevated, but even higher were levels of the gas found near the Otay landfill in Chula Vista, with a plume leading west.

The flow of air west from the landfills may surprise Southern Californians accustomed to a prevailing breeze from the ocean. V gashi 2015 But in the cool of the night, the scientists say, that familiar ocean breeze actually reverses. Gas ark Later, after the sun rises, it reasserts itself.

When he was gathering his air samples in the Ford Transit Connect van, Lai drove most of his research runs at night, the time he said when the air is calm.

(Parallel research conducted by the UC Irvine team across the Los Angeles basin appeared in the Journal of Geophysical Research: Atmospheres in February.)

At Scripps Institution of Oceanography, which was not involved with Lai’s research, scientists also pick up “sources of methane quite near” the UCSD marine institution, said Ralph Keeling, a professor of geochemistry. Pictures electricity pylons “The highest values we see are when the wind is out of the east, and that points right at the Miramar landfill.”

The methane Lai found is not likely to directly harm people. Electricity outage houston tx For the most part, it does not contain the foul-smelling chemicals that so bothered residents of Porter Ranch in Los Angeles County when a Southern California Gas well failed there recently, and the levels are too low.

The harm instead is to the environment, and possibly to San Diego’s ambitious Climate Action Plan. O gastronomo buffet The plan commits the people of San Diego to reducing greenhouse gas emissions 60 percent below what would be predicted for 2035. Electricity for refrigeration heating and air conditioning 9th edition pdf It goes beyond the ambitions of most cities. Gas dryer vs electric dryer hookups San Diego’s plan aims for reductions on the order of what scientists say will actually be necessary to keep climate change in check. Electricity laws in india Plus it’s legally binding.

The Miramar landfill is the largest emitter of methane in San Diego County, by its own account. Ortega y gasset revolt of the masses Because of that the city has no choice but to sharply reduce emissions there to meet milestones under its plan.

Yet city officials in charge of the landfill could not say how much methane is being released from it. Z gas cd juarez They could not say who provided baseline figures about the landfill’s emissions to the drafters of the city climate plan. Gas smoker recipes And they could not say by how much those emissions will be reduced to comply with the plan.

Ray Purtee, a senior mechanical engineer, said the city contracts with a company that measures methane near ground level four times a year, walking a serpentine pattern across 400 acres. Grade 6 science electricity unit test The contractor looks for cracks where methane flows out and concentrates at higher than 500 parts methane per 1 million parts air. Electricity flows through The contractor always finds such places.

Records show the landfill and its related contractors have been cited numerous times by the San Diego County Air Pollution Control District for uncontrolled escapes of methane from underground where garbage is rotting, sometimes sending forth streams of gas through cracks at more than 2,000 parts per million, four times the legal limit.

Whether it’s the city, which owns the landfill, that finds the crack, or the county, which enforces air pollution laws, earthmovers then mound up soil on the bleeding cracks and the ground is remeasured.

This lack of data has become something of a cause for Ray Weiss, who is also a geochemist at Scripps. Electricity hair stand up From laboratories there, he monitors levels of methane measured at the end of the pier, along with dozens of other climate-changing gases from monitors around the globe.

“You don’t want to discourage somebody who is doing something important for the environment,” Weiss said, referring to the San Diego Climate Action Plan. Bp gas prices columbus ohio “On the other hand, you want it to work, and the climate in the end doesn’t really care what we do politically, or what we say we are doing. Electricity kwh usage calculator It only cares what we actually do. Gas examples So there is a real need for independent verification as we embark on reducing our greenhouse gas emissions.”

Some city officials maintain that, rather than being undercounted, methane is being over counted from Miramar. Gas vs electric range Methane gas forms as natural materials decompose in moisture and without oxygen. Electricity 4th grade Mike Thompson, deputy director of the San Diego Environmental Services Department, said that just isn’t happening as fast as federal guidelines presuppose in dry Southern California.

But in places where sophisticated measurements of the air near landfills have been carried out, such as in Germany, they’ve found estimates are too low, sometimes by a factor of two.

The only way to eliminate the methane made vivid on the new map of Lai’s data, said Nick Lapis, is to stop throwing food and other live material in the garbage.

Lapis is the legislative coordinator for Californians Against Waste, an environmental advocacy organization. La gasolina lyrics Those “better things” include grinding up the material into

compost. I gas shares The state is slowly moving in that direction. Chapter 7 electricity note taking worksheet Residents in the Bay Area have had curbside pickup of their food waste for several years. Gas jet compressor And a new law went into effect April 1 requiring California businesses such as restaurants that create a certain amount of food waste per week to have it picked up separately.