but kunitz-martin said the increase in lng tanker traffic increases the risks to public health and the marine ecosystem.
methane gas escapes storage containers during transit and from ship engines during transit. escaped methane reacts with other chemicals to create ground level ozone, a dangerous air pollutant, especially for people with respiratory problems.
“elevated ozone levels can cause significant respiratory distress, including coughing, throat irritation, chest pain and reduced lung function. those with pre-existing lung conditions such as asthma, bronchitis and emphysema are especially vulnerable,” the report notes.
more than 800,000 people in b.c. and washington state live within 10 kilometres of the approved tanker routes, which pass through or skirt the edges of several protected or environmentally sensitive marine areas.
some tanker routes also pass through waters designated or proposed as critical habitat for marine life, including orcas, humpback whales and salmon. the report found that more than 1,000 kilometres of tanker routes pass through federally designated critical habitat areas.
“this habitat is designated for species at risk in canada and the u.s.,” kunitz-martin said. “we’re talking about, for example, resident orcas. we’re talking about humpback whales and other animals who have this area set aside to help them recover.”