carbon monoxide is a colorless, odorless gas. even at high levels, it kills without warning. >> while we all can stand here today and think about what we would do or could have or should have, the reality is, these people apparently were affected very quickly by a large quantity of carbon monoxide. >> the pastor says nelson, oscar, and sonya and the other victims are in heaven with the lord. the cdc says these deaths are shockingly common. nearly 500 americans every year killed by carbon monoxide. the fire chief says a couple of things could save some of those lives. regular checkups of your home heating system and carbon monoxide detectors. the fire chief says these are just as important as smoke alarms. in oxen hill, bruce leshan, 9news now. >> new at 7:00, a verdict in the trial over the deadly crash that killed two high schoolers in hay market. today a prince william county judge found 19-year-old christopher suarez guilty of reckless driving, but not guilty on two counts of involuntary manslaughter. he was driving with four

a colorless, odorless gas. two numbers i want to talk about. 19.4, 393. a gallon of gasoline weighs 6 pounds, if you lifted up. if you burn it, you can produce 19.4 pounds of carbon dioxide emissions. that blew my mind. i knew about oxidation and reduction reactions from high school chemistry, but when you have that knowledge, that opens up a world of understanding. we were able to quantify greenhouse gas emissions in the taxi industry, which people were not doing. i want to thank all the people at the department of the environment, from the nrdc, that helped us on that. we figured out how to do it long before anybody was really measuring carbon. the second member i mentioned -- i gave a speech last year. it was 391. i went on a website last night and it was 393. that is parts per million of carbon dioxide in the atmosphere. when we were all born, that number was in the low 300's. that number has been fluctuating between 100 and 300. before long, we will be passing 400 million. it is a sobering thought about what that means for our planet, but i am proud

e housfurnace have been to blameethey are reminding reeidents that carbon monoxide is an odorless, colorless gas... and that theeonny way to detect it is by having a c-o detectoo in your home. the country's fourth case of mad cow disease has been found in a dairy cow in california. as rick vincent expins... &punlike the global mad cow outbreak in the 90s... officials don't want us to worr. worry. randoo testingg t this plant in california ound a dairy cow with what's known as 'mad coo disesase.'baker commodities converts animal byproddcts, such as tissue and &pcnn medical correspondent, elizabeth hen explainsswhat cculd have happened iffthh cow hadn't been found."it might have beesoop or hemicals or never eat, but it might ave been rendered into feed for livestock or poultry."even iff prohit higrisk parts, like brains anddspinal cords from eetering the food supply. agriculture secretary, ttm vilsackkys this find means safety measures are workkng. "we've taken sps since 2004 to ensure that the pes of produuts from animals that could potentially be the cause of madow dissase are not in the food sy

carbon monoxide is a colorless, odorless gas. even at high levels, it kills without warning. >> we all can stand here today and think about what we would do or could have or should have, the reality is, these people apparently were affected by a large quantity of carbon monoxide. >> reporter: the pastor says nelson, oscar, and sonia chavez are now in heaven with the lord. now the cdc estimates that almost 500 people, 500 americans are killed every year by carbon monoxide. in the last two months, fire rescuers here had four calls for suspected carbon monoxide. planning to go door to door tomorrow morning, warning people about the dangers and urging them to get themselves a carbon monoxide detector. derek. >> you know what, bruce, i'll take it back. thank you for that. there are some simple things that you can do to help prevent carbon monoxide leaks. if you have gas appliance system, you want to have it serviced every year. install a battery powered carbon monoxide detector and if you suspect carbon monoxide poisoning, the symptom

broken exhaust pipe onnthe house furnace are reminding residents that caabon monoxidd is an odorless, collrless gasd phat the only way tt detect it is by having a c-o ddtector ii your home. for tte first time this year, gas prices are less than they were at the same time a year ago. joel d. smith is live in northhbaltimore with more good news and some reasons, why analysts now say the predictions of 5 dollar a gallon gas are over. good mooning joel d. & look at our prices here...... (ad lib) year is wwen the reffnery blends, which is a little more costly do sse gas prices tick up a little bit. bit..urrent 3.84week ago 3.90 year ago .86.md avg 3.89 3.89piles are up... demaad is down. price of crude iss gas prices are continuing to drop nationally indicating the possibility that they have peaked for the year, aaa mid--tlantic weekend gas report.national avvrage hit itsshigh for the at 1.09 per gallon. peak hhs not been reached before mmy 14th. in 1998, the ational average hit its high for the year on jan. 12th, at $1.09 per gallon. peak has not been reached before in los angelas, gas has dropped for

the bodies of three other victims, extraordinarily high levels of carbon monoxide gas was found inside the home. the odorless, colorless gas was rated at 550 parts per million. a normal reading would be 5 parts per million. >> no word yet. >> two dogs chased children. now, neighbors there say those dogs are still at large, even though they know who the owners are. >> reporter: andre hawthorne is recovering from injuries after use his body as a human shield. >> i threw my left arm up to the dog. so i was using my right hand to punch on him. >> two big dogs. hit in the side of the eye. they weren't going for nothing. >> reporter: the two dogs pinned hawthorne. one clamped down on each arm. >> started shaking him like he was a rag. >> reporter: a neighbor's surveillance video shows the dog on the attack. two teens jump on top of a car to get away. but one of the dogs follows, right after 11-year-old xavier bryant. >> i kept running. >> you saw the dogs jump on the car after him, what were you thinking? >> i was thinking i was literally about to lose my son. then i opened our building door, and let him run in. a

gas or propane. firefighters say installing a detector is the only way to sense the presence of the odorless, colorless gas. but they also recommend annual furnace and chimney inspections. carbon monoxide poisoning symptoms are similar to symptoms of the flu. >> it's a sad situation, really sad. >> reporter: if you have a concern about your home, firefighters here in prince george's county say that will come to your neighborhood. all you have to do is call the number on the screen, 301-864-safe. in the meantime, the fire chief here says he wants legislation that would require carbon monoxide detectors in all oxon county homes. >>> there is an effort underway to help the victims' families pay for the funerals. we'll have more on that on news 4 at 5:00. >>> the man accused of killing jennifer hudson's family appeared to break down and cry at his trial in chicago today. prosecutors showed graphic images of the youngest victim, hudson's 7-year-old jeff few. today was the first time william balfour showed any emotion. balfour pleaded not guilty to first degree murder in the direct of hudson's mother, brothe

gas, or propane. firefighters say installing a carbon monoxide detector is the only real way to detect the presence of this odorless, colorless gas. they recommend annual furnace and chimney inspections. car mailbox poisoning -- carbon monoxide poisoning symptoms very similar to the flu. >> the reality is these people apparently were affected quickly by a large quantity of carbon monoxide. and without the detector and without the connection of the pipe, we are where we are. >> reporter: just a horrific story here. this is not the department's first time here in the southlawn neighborhood. they've been on four calls for possible carbon monoxide in recent months here. say they that's not uncommon in an older neighborhood like this one. the fire department says everyone should have a carbon monoxide detector in their home. most of the homes here are single family. they are homes that were built in the mid to late '50s. again, some of the appliances inside some of the pipes inside might be older than they should be and need inspections. they will be out here around 9:00 this morning speaking with residents. live in oxo

gas can be generated by any appliance that burns coal, wood, charcoal, grass or propane. firefighters say installing a detector is the only way to sense the presence of the odorless, colorless gas. but they also recommend annual furnace and chimney inspections. carbon monoxide poisoning symptoms are similar to symptoms of the flu. >> they say it's a sad situation, really sad. >> now, prince george's county firefighters say anybody who might be watching this perhaps this afternoon and wants their home inspected can call the number we're going to put up on the screen, 301-864-safe. and they can come do an inspection at your house. in the meantime, the chief told me a while ago that he wants legislation next time lawmakers meet, that would actually require carbon monoxide detectors in every home in prince george's county just like a smoke alarm. live in oxon hill, maryland, news4. barbara, back to you. >>> and we have a traffic alert for drivers in the district. crews on the scene of a partial road collapse in foggy bottom. right no, the 800 block of 22nd street in northwest washington is closed. d.c. department of transportation crews are on the scene right now. drivers may w

it's a odorless, colorless poisonous gas generated by an appliance that burns fossil fuel.hat includes any appliance in your house that burns natural gas, coal, wood, charcoal, gasoline, propane, so many furnaces, fireplaces, ranges, water heaters, they all produce carbon monoxide, but the gas is normally vented out through a flue or chimney. and because it is so deadly, it can't be detected by sight or smell. people don't know they're being exposed. symptoms of carbon monoxide do include headache, fatigue, nausea, dizziness. you should get out of the house and into fresh air if you or a family member have any of these symptoms. the best way to protect yourself against carbon monoxide poisoning is simple, prevent it. buy a carbon monoxide detector. you install it the same way that you install a smoke detector and you can buy one at a hardware store then have your heating system always professionally inspected every year. also, get your chimneys checked for blockages or other problems and never operate any portable generator or any other gasoline powered tool near your house

from el salvador were found dead in their home on shelby drive, apparently poisoned by the odorless and colorless gas>> we'll take readings in your house if that's okay with you. >> reporter: randy shock says his home has always had a co detector. >> that old one has been there about ten years, i change the batteries -- whenever it gets weak, it beeps. >> it's actually negative one. >> reporter: the victims' home did not have a carbon monoxide detector. since then family and a small but close knit church community have rallied together. mara garcia and several others spent the afternoon making these donation boxes to place in neeb stores. >> we're immigrants, most of us barely making minimum wage and can't afford the funeral cost, she tells me. the hope is to raise enough money to ship the victims' bodies back to el salvador according to the counsel general of el salvador, that's proving to be expensive. $5,000 to $6,000 to relocate each body. so a non-profit organization that helps salvadoran families in these types of situations has set up a found for people to donate to. if you want to make a dona

apparently poisoned by the odorless and colorless gas. >> this is called a cm meter. we're going to take some readings in your house. >> reporter: randy shock says his home has had a detector. >> that old one has been there like ten years. whenever it gets weak, it beeps. >> your reading is actually negative one. >> reporter: the victim's home didn't have a carbon monoxide detect detector. their loved ones including a small but close-knit church community have rallied together. maria garcia spent the afternoon making donation boxes to place in local stores. we're immigrants, most of us barely making minimum wage and can't afford a funeral. the hope is to raise enough money to send the victims' bodies back to el salvador. it's proving to be expensive. $5,000 to $6,000 to relocate each body. so a non-profit organization that helps salvadoran families in these situations has set up a fund to donate to. if you'd like to make a contribution, go to our website, nbcwashington.com and searching key word "donation". >>> baltimore police say the woman accused of stabbing her 8-