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It's my understanding that vehicle emissions are typically measured at 4000 miles, and EPA emission deterioration factors are used to determine...
That official CARB cert sheet (Executive Order) also gives the certified US06 and SC03 emissions. The X3 28d is certified at 0.003 g/mile and 0.01...
Guess I'm not following you. LEV II/Tier 2 doesn't combine NMOG/NMHC and NOx in the FTP like Tier 3/LEV III does. However, you can just add...
The FTP, US06, and SC03 are the three test duty cycles that EPA/CARB uses to certify vehicles. The FTP is the "base" test cycle, supposed to...
Not sure if this is your point, but I'm using LEV II SULEV standards, not LEV III or Tier 3. The SULEV (LEV II) standards are available at...
The 328d technically meets SULEV emission requirements per CARB certification results... 2014 328d (Certified Emissions (FTP @ 120,000 miles)...
"...Regulated emissions of NMHC, CO, and PM were 95, 98, and 89 percent below the EPA 2007 standard... ...Unregulated emissions that included...
There's a vast difference between new-technology diesel engines and previous-generation diesel technology, which is what each of those links...
STUDY FINDS FEW HEALTH EFFECTS FROM NEW TECHNOLOGY DIESEL ENGINES
New Toyota Prius uncovered | Auto Express
Rob - I think it's at http://www.arb.ca.gov/fuels/lcfs/lu_tables_11282012.pdf but I actually downloaded the table a few years ago. Hope it doesn't...
Regarding GHG emissions of various fuels, CARB has a "look-up table" as part of its recently-adopted "Low Carbon Fuel Standard". In that table,...
Here is a graphic from EPA of conventional emissions from increasing blends of biodiesel (FAME) relative to emissions from petroleum diesel......
Doug, I'm using seasonal (mid-summer) upper flow configuration as a surrogate for what I would expect the trend of flow configuration to be...
Regarding polar amplification and "extreme weather" events, it's been my observation (casual, not rigorous study) that upper flow typically...
You must have a very good sense of smell then, Dave, because our diesel car (2010 BMW 335d) produces no odor whatsoever that I've ever noticed,...
I agree, expect AR5 Final Draft also concludes that there's no clear trend in most forms of "extreme wx" (so far at least). This is my summary...
That's my understanding, but I worked at only one NWS office that was an upper air site (Brownsville, TX) in the mid-late 1990s. I know at that...
For what it's worth, near-surface absolute humidity has increased since the 1970s, but the moistening over land has abated during "recent years",...
That's the reason I used EPA as the data source. No caveats, no exclusions, just the average lifetime emission factors of all modern gasoline and...
