A mixed group of six medical experts, including a former Queensland federal government epidemiologist, submitted a written report to a Senate inquiry stating the state’s ban on cancer-causing chemical substances won’t protect the city from serious health threats. Long-term exposure to benzene for instance, even in very small amounts, can affect the bone marrow, leading to anemia and increasing the chance of leukemia, and may affect unborn children. Related StoriesMeat-rich diet may increase kidney cancer riskMD Anderson research reveals why chemotherapy drugs not effective for most pancreatic cancer patientsNew results reveal association between colorectal cancer tumor and melanoma drug treatmentCouncilor Loughnan says he expectations federal senators treat the growing worries about the CSG industry seriously.After up to nine years of follow-up, BRCA1/2 mutation carriers had been 28 % less likely to die from the condition, even though women with the BRCA mutations are more likely to develop ovarian and breast cancers significantly. The study is being published January 1 in the Journal of Clinical Oncology . Mutations in these genes, which are more common among Ashkenazi Jewish ladies than in the general population, increase the risk of breasts and ovarian cancers. After five years, 46 % of the carriers had been still alive, weighed against 34.4 % of the noncarriers. Median survival was 53.7 months for carriers and 37.9 months for non-carriers. The differences in survival were most pronounced for females diagnosed with more advanced disease , with five-year survival rates of 38.1 % for carriers and 24.5 % for non-carriers.