Identification and Definition a problem
A 2009 research report by Zero2IPO claims that the number of pets in China has grown 500% from 1999 to 2007. There are now estimated 200 million-plus pets in China and this number is expected to grow to 500 million by 2015 China, the world's most populous nation, has about 150 million pet dogs, about one for every nine people. An average Chinese city has about 100,000 dogs and gains about 10,000 per year, while large cities can have twice as many. Beijing had more than 500,000 pet dogs in 2004. Registered dogs in Beijing increased 16% this year, reaching 530,000 dogs. But the actual number of dogs in Beijing is actually much higher. The Social and Environmental Impacts of Uncollected Dog Waste Dog waste in urban areas is a largely ignored issue that is nevertheless the source of serious social and environmental problems. Dog waste presents a problem at two stages of waste management: collection and disposal.
Picking up: the Collection of Dog Waste
Uncollected dog waste can negatively affect park aesthetics as well as public health and safety. It can also damage turf and other vegetation. In natural parks or along the edge of water bodies, accumulating dog waste can adversely impact sensitive habitat areas. On a broader level, uncollected dog waste is an environmental issue. Nonhuman waste can be a significant source of bacterial contamination in urban watersheds. While livestock is the major source of this problem in rural areas, dogs (along with dense populations of wild birds such as seagulls or Canada geese) are typically the source of contamination in urban areas. Pathogens found in animal waste that is “zoonotic”--capable of being transmitted to humans from animals--are the major cause of concern. If ingested, some of these pathogens (including Cryptosporidium, Giardia and Salmonella among others) may result in serious illness or even death. Roundworm and hookworm infections are the zoonotic diseases most commonly associated with dog waste, although only waste from infected dogs carry these parasites.
A comparison of three resident surveys about cleaning up after dogs. StudySurvey Results
Beijing(1999)• 62% always cleaned up after the dog, 23% sometimes, 15% never • Disposal method: trash can (66%), toilet (12%), other 22% Shanghai(2004)• 51% of dog owners do not walk dogs
• 69% claimed that they cleaned up after the dog
• 31% do not pick up
• Disposal methods: trash can 54%, toilet 20%, compost pile 4% • 4% train pet to poop in own yard
• 85% agreed that pet wastes contribute to water quality problems Wuhan(2009)• 44% of dog owners do not walk dogs
• Dog walkers who clean up most/all of the time 59%
• Dog walkers who never or rarely cleanup 41%
• Of those who never or rarely clean up, 44% would not cleanup even with fine, complaints, or improved sanitary collection or disposal methods
• 63% agreed that pet wastes contribute to water quality problems Table 1
Among those residents surveyed, the most common reasons for dog owner’s behavior in terms of dealing with their dog’s waste are provided below: Reasons for not picking it upReasons for picking up
• because it eventually goes away
• too much work
• not prepared
• no reason
• small dog, small waste
• use as fertilizer
• sanitary reasons
• Cleaner will clean
• No awareness• it's the law
• environmental reasons
• hygiene/health reasons
• Personal courtesy
• it should be done
• keep the park clean
Why many pedestrian do not want to go to park especially elders and children? Dogs leave excretion at random in the grass or in the path. The unbearable smelly odor drives people away. They are afraid of being bite by the dog. Many people get sick after a close contact with dog. No one wants to use the amenity or recreation facilities in the park due to the dirty leaved by dogs.
Why the crap always can be seen in the park?...