This is illegal in Australia and the incidence of hydatids is now extremely low. Odours are not a persistent or long-standing problem and are usually dissipated by wind currents. They are generally not strongly detectable unless someone is within close vicinity of fresh faeces. To help minimise odour problems, refuse bins should be emptied often. An air freshener cartridge could also be placed under the bin's lid.
Local authorities require dog owners to properly dispose of faecal deposits.
Encouraging people to do this is best achieved through an integrated dog management program comprising education, communication and enforcement. Pressure from other park users has also been reported to raise the level of compliance in some parks, although there is no specific supporting evidence. This last mentioned measure warrants more attention than it has received to date. In recent years, authorities both here and overseas, have favoured or introduced a range of specific programs to encourage and make it easier for people to be more responsible, e.g. disposable or reusable 'pooper scoopers' that owners either bring with them or use on-site, specially designed dog toilets or 'pooch patches' provided by the municipality and so on. There are advantages and disadvantages with each approach and programs will be copied and improved on in the future as more programs are trialed and we learn from experience.